Hi guys, just a thought, you do not need to build traffic to the domain yourself, you can always buy expired domains, best to subscribe to a paid service like dropping.com (so you are the first to know) or a free one, expireddomains.net and in this way, you can get old domains that have traffic. You could use these domains for parking, getting advertising income or even to sell. I have noticed, that domains that were not hot in the past, can still be hot now, just use Google Trends to type in the keyword, and you will see its future projections. 
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HIM: "Mainly small-medium sized local businesses looking for a way to increase their ranking. Most already have a branded domain in place, and have heard that using a keyword domain can help. Or they have seen a competitor ranking using that method. The problem I face is that they don't have a lot of money to spend, so I get lowballed on the asking price. There have been a few that make a ton of profit vs what I purchased it for, but that boils down to luck: what is for sale, when I find it, things like that."

Where do I start? So I heard about bitcoin and I know it’s all the craze nowadays. Let’s start from there. I’ll hop on Google Trends and type in “bitcoin”. Google Trends basically tracks the popularity of search queries over time, it’s often a goldmine for discovering currently exploding or soon-to-explode topics/terms..etc. So here’s what it looks like:
Don’t get me wrong, I’m not saying marketing your domain is not important. But, if you’ve bought a bad domain and you do (and overdo) everything laid out in this section and more, it’s still very unlikely that it would sell. It’s like spending car flipping and spending a huge amount of money, time and effort perfecting a car’s paint job, except that this car’s engine is completely fried. You’ll never be able to drive it anyway, no matter how awesome the paint job is, it’s irrelevant.

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Perspective buyers are able to directly contact domain holders in cases where the desired domain is no longer available. Most registries openly publish the names and contact data of domain holders. Once this information is gained, buyers can get in touch with domain holders and make an offer for the name. Sales are also known to occur in instances where the original domain owner had no prior commercial ambitions
One of the best ways to obtain a valuable domain that is already search engine optimized is to purchase existing domains via auction sites.  This strategy can be beneficial mainly in two ways.  Firstly, any domain that has already been purchased was probably already researched for potential benefits.  Secondly and more importantly, the second benefit is that many recently expired domains still retain some of the search engine optimization attributes that were built up by the previous owner. For example, a recently expired domain name may still have active backlinks on the web, and the page rank of the domain could still be high, giving the purchaser instant SEO gratification with minimal effort.

But in general, the best and easy way to sell a domain is to go with a marketplace. There is many popular marketplace dedicated to selling domains including Flippa and SellDom to sell your domain (full disclosure, I’m working on SellDom). The advantage is to leverage the popularity of that kinds of services in hope that someone will find your domain and buy/make an offer.
Yes! Selling domain is an emerging trade and no wonder if it can develop into an exchange. www.DomainX.org has been initiated with this view. There are some good ideas in the comments regarding which names to buy and how to grow their value. However one must not forget that it also involves a recurring cost (annual renewal) and keeping many of them might become difficult if you are not really selling at least a few to cover it. Enjoy free listing at DomainX.org.
At the end of the day, the owner of this domain name let it expire and didn’t renew it. So while there may be many legit reasons as to why they might’ve done that, one of the not-very-legit reasons could be that the domain is “dead” in some way or another. In other words, it’s no longer useful for the original owner because of a penalty or otherwise. If so, it's unlikely it'll be of any use for you as well.
GoDaddy offers a variety of benefits when you choose to buy or sell your domain with us. We have a unique Auction bidder verification process that protects both buyers and sellers from any kind of fraudulent activity. We also offer a handy Investor mobile app that allows you to watch auctions in real time and view their history (including number of bidders and how much they bid), all from the convenience of your smartphone.

Selling on auction sites is another great way to find buyers. Ebay.com is perhaps, the most popular place to sell domain names. Afternic.com is another site that allows sellers to find good buyers. If you have premium domain names, become a member at GreatDomains.com and list your domain name there. The site is a reputed marketplace and brokers deal with thousands of dollars trading domain names. You can also sell domain names through Sedo.com, a site which has its own selling program. Sedo.com has the largest marketplace in the world, and boasts of having a list of the most expensive domain names in the market. It also has a safe and secure escrow service for domain name buyers and sellers.

Domain name sellers are advised to use Sedo.com to list their domain name. The real advantage with Sedo.com is the mandatory escrow service that comes with every transaction. The site charges the seller a commission of 15% per transaction or USD 50, whichever is higher, for domain names featured on the site. Sellers who do not list with Sedo.com but would like to use their escrow service will have to pay the minimum transaction fee of USD 50, or 3% of the transaction, whichever is higher.

It is much harder to sell names no one has heard of. Short names have the highest value — they are rare, easy to sell and bring substantial profit. Basic and common domain names, which can be relatable, or arouse interest in the market are the best. General names sell thick and fast and also bring considerably higher profit.  Names that are easy to spell will attract buyers, and provide good opportunity to make a decent profit. If you know you have a good domain in your hands, then you are likely to make good profit by selling it.

I founded this site back in 2007. I lost $50 to a data entry scam when I was still in college. I felt ripped off and had no recourse, but to suck it up and pull an extra shift delivering food to make ends meet.I setup this site so no one would have to go through the same experience I went through. I wanted to stop scam artists from preying on the vulnerable and help regular people learn the true, legitimate ways of making money online.

Use the advanced search option to quickly hone in on the type of names you are interested in. You can narrow the results by price, top-level domain (i.e, .com, .net, .org, .club, etc.), keyword, and many more filters. Using this feature will help you quickly sort through the millions of domains on the aftermarket and find the domain names that best fit your end goals.
One of the best ways to obtain a valuable domain that is already search engine optimized is to purchase existing domains via auction sites.  This strategy can be beneficial mainly in two ways.  Firstly, any domain that has already been purchased was probably already researched for potential benefits.  Secondly and more importantly, the second benefit is that many recently expired domains still retain some of the search engine optimization attributes that were built up by the previous owner. For example, a recently expired domain name may still have active backlinks on the web, and the page rank of the domain could still be high, giving the purchaser instant SEO gratification with minimal effort.
I've fixed some speed related problems and the new search cluster is now live. The combination of both speeds up every search noticeably. Also some unfinished expired lists are no longer in the domain name search. Some users noticed that you could already find TLDs in the domain name search that were not released yet. This is not possible anymore, however if you are one of those users, contact me. Let me know what TLD you are interested in and I will prioritize it.
Buying and selling Domains is a tricky industry. You easily get addicted to it without really knowing what it's all about. Unfortunately I learnt a lot of the answers on here after losing 6k on useless domains. It is a constantly changing industry but the subject that keeps coming up is TRAFFIC. Organic type in Traffic. Those premium domains are long gone and you need to spend big bucks to acquire them on secondary markets such as Domain Auctions, Expired Domain Names, and Available Aftermarket Domain Names for Sale but if you keep up to date with future trends then you can spend less on hand registered names. You really need to think outside the box and spend a lot of your time reading industry leading blogs like business insider, network as much as you can and have a specific niche before jumping into other trends that you don't quite understand. There's so many ways of selling. Don't try and sell to other people who are trading domains aka domainers instead look for an enduser on Google by typing the name you own and if there's advertisers then you have yourself some leads or use tools such as Free Domain Appraisal and Domain Productivity Tools. A buyer can be convinced to buy if you have the numbers to prove how much that domain would be worth to them. Find out how much they spend on advertising per month then make comparisons with the number of direct type in traffic they get from your domain that you selling. If you can prove these numbers then it's easier to sell otherwise you better off holding on to it, maybe develop it the way Trump has developed his name until someone interested gets in touch. There's so many platforms where you can list the domain such as The world's leading domain marketplace , Park Domains - Afternic -DomainNameSales.com etc . Please NOTE  I am not promoting any of these services but I have used them before and have had some success. Probably should have signed up for their  affiliate programs but haven't had a chance before this question came up. There's so many other metrics involved  so research as much as you can, don't spend a day without reading about the subject and go in at least knowing what you are doing. My two cents.
Above you provided great information about buying and selling domain names. I have been to many blogs about the same and I have read the people make millions just by selling domain names. It's a process that one needs to learn with time and can give a good earning by reselling the domain name. The business is fruitful but one needs to read, understand the value of a domain name. Buying every domain name is a waste of money. One must see the future potential growth for that particular domain.
Now, a lot of times these great domains that have pending delete will get snapped up in a flash. Okay? You want to use the same system that’s 500,000 domains so you can always sort them by whatever you want to do to make sure you’re only looking at quality domains and look at the link profile the same way. Once you find one that you like, you can’t just sit on your computer at Go Daddy and wait for it drop on 6/14 and expect to get it because there’s going to be a lot of other people gunning for that domain. You actually have to use a service like Snap Name.

You can add it as part of a private blog network or you can 301 redirect an expired domain to your site to bring some trust and authority to your site. Now, in my experience, the best place to look for expired domains is this free website called expireddomains.net. So, you just have to head over there, make a free account and this is the page that you’ll see when you log in.

Everybody going to start using old domains should also know how to get them, I'm going to post soon article about it on seomoz as there are several ways starting from online rankings and lists up to dedicated seo tools that you can run on your computer and get precise and actual data on demand for any domains lists. Anybody intersting in such tools please visit our website: http://en.exdomain.eu/
Your course of action really depends on how much work and effort you can put into the expired domain. If you're barely able to maintain and optimize your current site, you probably want to just 301 redirect the old site (note: see my amended comment above about the link value not likely to be passed). If, however, you're more creative and have some time on your hands, you can try your hand at crafting a microsite. If you really know your stuff and are experienced at making money off various websites, you'd probably do well with the third option.
Quite a lot of the time majestic trust flow will be great but ref domains below 10 but when I check ahrefs its considerably higher for ref domains. Without ahrefs I would of passed over these domains and missed out. Worthwhile addition if your building a lot of pbns. I also use linkultra backlink for my final spam check as it checks language,site type and if backlinks are comment, profile spammed etc enabling me to check if the backlinks of the domain are solid very quick.
The domain name industry is quite similar to the real estate industry in a lot of aspects. There are end users, brokers, consultants and domain flippers or “domainers”. Domain flipping works similarly to buying a house, renovating it (or even sometimes just sitting on it) and then selling it again at a higher price point. The gist of it is: you’re purchasing a domain name and betting it’s worth (or will be worth) more than you paid for it. If you’re right, you get a nice paycheck and move on. Those who make a living out of this just rinse, repeat, and scale.