Dropped Name Research
Name Description 
URLTrends.com - SE Ranking and Linkpopularity Information and Trends. 
Archive.org Way Back Machine - Internet Archive. Check Website History. 
Domain History Tool by DomainTools.com - Domain History since 2002 (Requires Membership). Also offers tools like Name Server Spy, Mark Alert, Domain Auctions, Domain Monitoring, Bulk processing. API available. 
JustDropped.com - Deleted or Expired Domain Name Search Engine. Dropped Domains - Data Dump by Date and Top Level Domain for the last months, public at JustDropped.com. 
ExpiredDomains.com - Expired Domain Research Tools and Services. Some are free, others require membership. 
Domain Name City by e107 - Daily Domain Name Drop List and other tools. 
VZ Tools - Expired domain name Archive, Capture Domains, Backorder Domains 
Afternic - Buy and Sell premium Domain Names. The Domainers Marketplace. 
SnapNames.com - File Downloads of Pending Delete Names (next 5 days), Expired Names SnapNames exclusive and Names in public auction. Snapnames is the the world's largest clearing house of expired and deleting domain names. Sign-up for a free account for the opportunity to Bid Early: If you bid prior to auction start and are the sole bidder, you automatically win for the listed minimum bid, keeping your selected domain name from competition. No Up-front Cost.
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