Serendipity: to make discoveries, by accident and sagacity, of betas not in quest of. (paraphrasing the Wikipedia)
Packwhiz
Packing list generator
Blog
clowdy
Clowdy is a photo blogging service for the Apple iPhone.
DealAdNet (german)
(stealth mode)
Karma is a funny thing.
DivX Stage6
(Alpha ;-))
A community for people who love video
Function Space
(email waitinglist)
All about Mathematics, Astrophysics and Computer Science
