One of the best things about SnapNames and their 'Transfer Fulfillment' approach to expiring names is the fact that the winning bid typically retains the original creation date of the domain.

The Whois Source website just added creationdate listing to their snap search.

Here is an example of a search for 'FreeMusic':
http://www.whois.sc/snapnames/?q=freemusic

Notice in the results, one can see the domain with the earliest creationdate.

Enjoy!

-Jothan