Here are two more (I searched my bookmarks and deleted a bunch of 'em!). All of these use different databases to search, so if you are looking for something specific, it's a good idea to try several search engines.
This one uses the fab shop hop sites
http://www.fabshophop.com/fabsearch.asp
and this one uses a much smaller group of shops
http://webstore.quiltropolis.net/
Sometimes, if you are looking for an older fabric, as I am, the smaller shops can be more apt to have it sitting around longer and in larger quantities. I was very successful and even found what I was looking for on sale! :D Hope you find the sites useful...they are definitely worth bookmarking! :thumbup:
Looks like we overlapped Luv2Kreate!!