Earn almost 0.05 BTC every month from 
http://www.surf-profit.com/?ref=11928 
the free auto surf site that pays in bitcoin 
Standard member: (Rate: 0.00001600 btc per site; Allow minimized: No) 
99.2 sites per day   about 15. sec per site
You can cashout at 0.05000000 btc
you can upgrade account for more profit
just keep page maximized while it surfs 
you don't even need to be on the tab you can watch, play, or  
do other stuff