Gubb comes highly recommended from the Twitter world (thanks to Bruce Wagner by way of my buddy napril1023).
Gubb is a list-makers dream. They lists are color coded; they’re available on via phone, email and web; they’re prioritizable. You can share your lists and collaborate with others. And, according to gubb, they look good in print.
I tend to make my lists with pen and paper, but for those of you who like the electronic versions, gubb may be just the thing.
PS — don’t you dig the crazy names for all these free tools? Xobni, Wordle, gubb, Cucku….