I’ve written more about Wallwisher and PinDax on The Best Web 2.0 Applications For Education — 2009.
Meme Memo seems a lot more complicated than those two apps. I’m assuming it’s that way because you can do a lot more with it, but I just can’t figure out what that additional stuff is or why you’d want to do it. If you try it out, and can better explain it, please leave a comment.
Thanks to TechCrunch for the tip.