MMC was eliminated on 2014/04/22 because it used the Kimoto Gravity Well (KGW) which is subject to Time Warp attack as explained here. MMC was moved back to the list on 2014/05/01 as KGW has been patched and there will be a hard fork.

Technical Information
Release Date: 2013/12/14
Algorithm: Momentum with SHA512
Total supply: 10,000,00 in the first 2 years, 2% inflation thereafter
Premine: 7.3%
Block Time: 6 minutes
Block Reward: 280 MMC, 5% reduction every 1680 blocks
Difficulty Retarget: One block with the Kimoto ‘Gravity Well’

Websites
Website
Announcement Thread

Old Forum
Reddit
Block Explorer
Source

GPU Advantage Calcs
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