Namecoin

Symbol - NMC

Algorithm - SHA-256

Total Coins - 21 millions

Block Time - 10 minutes

Coins per Block - 50

Coins per Block are halved every 210,000 Blocks

Difficulty Retarget every 2,016 Blocks

First Block mined on April 19, 2011

Status - Alive
Official Website
Download Windows Client (May not be the latest version!)
Linux Client not available
Mac Client not available
Source Code
Download Mining Package (Read the README.txt!)
Profitability Calculator
Mining Pools - BTC Guild | Bitparking | BitMinter
Exchanges - Vircurex | Cryptsy | BTC-e
Block Explorer
Forum
Announcement Thread
Reddit
IRC Channel
Faucets / Free Namecoins - None
Shops - None
You can buy .bit domains with this cryptocoin