Bter.com is a bitcoin exchange platform which supports bitcoin, BTC, litecoin, LTC, FTC, feathercoin namecoin, ppcoin, terracoin, freicoin, NMC, TRC, FRC, PPC trading.
GratisBitco.in gives away free Bitcoins every hour.
Payment gateway providing buy now buttons, shopping carts, and more to accept Bitcoin, Litecoin, and other cryptocurrencies/altcoins on your website/online store.