I like DarkCoin:First Anonymous Coin, readly innovate coin!
Anonymous block transactions powered by DarkSend
Difficulty Retargeting Using DarkGravityWave
Proof­Of­Work Utilizing X11
Main thread:https://bitcointalk.org/index.php?topic=421615.0
Whitepaper:http://www.darkcoin.io/downloads/DarkcoinWhitepaper.pdf
Interview with dev:https://medium.com/p/a923facddc3c