Reddcoin to implement a new "Proof-of-stake-velocity" algorithm. Looks interesting. 0.00000004 sell wall vanishing on Cryptsy.
Full paper: http://www.reddcoin.com/papers/PoSV.pdf
FAQ: http://www.reddcoin.com/papers/PoSV_FAQ.pdf
Announcement: http://www.reddit.com/r/reddCoin/comments/249dnl/major_announcement_reddcoin_to_implement_new/