So what are some strategies to finding great domains to flip?  Well, the first is to find quality domains.  There are some sights that publish a daily list of good upcoming Namejet auctions like here: http://www.tld.org .  This is an easy way without having to search to find some great upcoming auctions to bid on.  If you have the time you can search Namejet yourself.  The key is to making money by flipping domains is to find domains that other people will want.  If the 30 day window period just started on a domain (for this example let’s say it was Anticareer.com) you could use Google to search for ‘anticareer’ and ‘anti career’ and see if you can find people who own sites that may be interested in this domain.  Email them and ask them if they’d have an interest in purchasing the domain Anticareer.com.  If you get some bites you can then go and bid on the domain and if you win it you can flip it right away.  Once you get some experience it will be easy for you to spot the domain names which you can quickly and easily flip and you’ll also develop a good feel for what price you should pay to make yourself the amount of profit you want to make.
Timothy Shim is a writer, editor, and tech geek. Starting his career in the field of Information Technology, he rapidly found his way into print and has since worked with International, regional and domestic media titles including ComputerWorld, PC.com, Business Today, and The Asian Banker. His expertise lies in the field of technology from both consumer as well as enterprise points of view.
Most popular auctions with expiring domains are at godaddy, namejet, snapnames. Search for expired domains name its very easy if you have domains list. With a bit luck, you can drop good one with PR5 cheaper like $200, just need to know which domain have not fake pr. List of domains are not free, but updated dailly with aprox. 50.000 new expiring domain names.

Many individuals have the habit of collecting attractive domain names but never using them. If so, why not get rid of unused domain names and in the process, make some cash? It is important to understand the whole process of selling domain names. On the outside, the process may look very easy, but unless a trader is well aware of how the whole process works, it is not easy to find a buyer.

it can be profitable,i'm selling domains and i can tell you that all providers loose money selling domains,we compesate it with  hosting plans but if you look just domain selling where providers buying domain for 7$-10$ and selling it for 0.99$-5$ ...well like say we compesate this with web hosting plans and other services,also on when some one renew domain but since even renewal is done mostly using cupons...than giving free domain with web hosting is best solutions.Well like i say it can be profitable if you want work with domain,buying domains for 0.99$ and than work with it and you can earn nice money.
Official marketplaces offer a third possibility for domain traders to peddle their product. Domain marketplaces, such as Sedo, GoDaddy.com, or BuyDomains.com, link potential buyers with domain holders hoping to sell their prized virtual property. These platforms function as a kind of domain real estate agency and are known to demand somewhat high prices for their services.
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.

2) prerelease auctions.  These are domains where the auction venue has contracted with the registrar, like Fabulous or Moniker, to auction off non-renewed domains.  Just before a domain enters the pending delete process, it goes to a private auction to any person who has backordered the name.  Some people feel that back links on these type of auctions still provide a SEO benifit. My testing indicates that there is zero SEO benifit when these domains are redirected into another site.  So if you get a domain with "pink squirels" in a lot of achor text to a domain and then point it at your domain, you don't rank for "pink squirels"
In the grey hat SEO world, the thought is that you can take a domain that is keyword driven, do a quick optimization to get the site ranking, and sell it off at a profit. It could, and does happen daily. How much time is invested in optimizing a site to get to page one, vs how much the site will sell for? (remember that quote at the beginning of this article?). Let's put it into simple math:
In theory, you could technically acquire a domain for $10,000 and be able to sell it for $100,000. You could also acquire a domain for $10 and be able to sell it for $100,000, $10,000… or $100, you get the picture. Because of this, it’s hard to recommend a perfect starting budget because your strategy, experience, and the pace at which you learn will hugely affect your buying and selling decisions.
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