I have a question, not a request to add a coin :D
How do you get to the 'trade volume, 24h' value for Bitcoin? If I compare it to bitcoincharts' "Markets" page, your value seems substantially lower, even if I ignore all currencies other than USD. Just adding up their 24h USD volume for bitstamp, mtgox and btc-e gives me almost 40M USD, while coinmarketcap says 36M. Or did you already exclude mtgox data from your calculation?
I get all bitcoin data from
http://bitcoinaverage.com#USD
And they exclude gox volume, so it makes sense.