Exchange is in progress, next week you will be able to buy and Sell SRC through external exchanges. I was having my morning coffee, misunderstood.
Do not sell SourceCoins in this thread, there will be several outlets for exchanges in the future. CoinsSource.com is a massive undertaking and SourceCoin is reaping the benefits. We understand the need for you to sell or buy more SRC, we are handling that with the best care.
On another note, we've updated our market cap Page to rival the best sites. This is still in alpha and we are working hard on styling and implemented more features: graphs and etc.
http://www.coinssource.com/crypto-currency-markets/