Corkboard Me is a wonderfully simple site for creating collaborative sticky notes. This site works very similar to Wallwisher, Pindax, and Spaaze, just click on board and start typing away to add a sticky note. This site generates a unique URL that can be shared w/ others to facilitate collaboration.
I highly recommend checking out Corkboard Me by clicking here.
Thanks to the award winning iLearn Technology for the tip!!