I use quiltshops.com frequently. They will give you a list by store, or thumbnails (which is my preference as you can see what the item looks like without going to the link). Very handy!

http://www.favoritefabric.com/ has a nice selection and great service

Yes - equilter.com is my favorite place to buy fabric online. Wonderful selections and a part of every purchase goes to charities.

Thanks for all these online sources. I have been quilting all day and just got on the computer now. Now I can do some searching.