I've done the fabshophop a few times, but it's just too many hops for me. I always feel compelled to find all of them, because I'd hate to lose out on the grand prize just because of one or two bunnies!
I used to do another one that had a worm, I think. It had less shops and was fun (I actually won something there), but it stopped.
There is also this one:
http://anilee.net:8080/anilee/index.jsp
and this one:
http://www.quiltdash.com/members.php?page=dashboard
Both of these are fairly small, and so for me are manageable.
I learned a lot about fabric styles by searching the sites, and I found a lot of pattern designers I liked. It was educational and enjoyable, but the thrill has passed, I guess!