Guys beware of these SCAM Sites mostly HYIPs:
Solid Coins, TechnoCrypto, Technolife, Bit5.biz, BTC Rocket
they are SCAMMERS promising you big returns for your bitcoins and yet after a day or two they will just run away with your money.
There are loads of new Bitcoin HYIP sites coming up now a days. Some even register as a company and get a Green-Bar SSL. Don't invest in sites which promise profits that are not practical in real world. Put yourself in the companies place and think if you had 1 BTC from a person, can you pay him back 0.10BTC everyday for 30days? If you see the possibility then do more research and take the extra step to contact them, read online reviews and then invest. Even if its a satoshi, its hard earned money.