Here are some links (updated) for anyone just joining us: (please add more if you have it)

http://www.blackcoin.co - Official BlackCoin Website
http://blackcoinpool.com - Official BC Multipool
https://coinkite.com - Web Wallet, Debit Cards and Payment Terminals
https://prelude.io/trade/usd/bc - Buy or Sell BC with USD
https://c-cex.com/?p=bc-usd - BC USD trade
https://www.litebit.eu/coin/bc/en - Euro to BC
https://www.mintpal.com/market/BC/BTC - Buy or Sell BlackCoin (BC) with BitCoin (BTC) on MiltPal Exchange
https://www.cryptsy.com/markets/view/179 - Buy or Sell BlackCoin (BC) with BitCoin (BTC) on Cryptsy Exchange
https://www.coinpayments.net - Stores that accept cryptos. BC is now accepted there.
http://blackcoinstore.com - BlackCoin Store
http://maarx.nl/maarx.nl/blackcoin/distribution - Check coin distribution ( top 1000 wallets )
https://chrome.google.com/webstore/detail/cryptosaur/ldifofhjjihonamocbjmboeeaolkflag - Download Google Chrome price ticker extention
https://twitter.com/search?q=%23blackcoin&src=typd&f=realtime - Tweeter related to BlackCoin