There are many websites which offer you to earn free Bitcoins. With most of these sites, the concept is that you visit the site and just for looking at it you get a small amount of Bitcoins. The concept has something in common with watching good old free TV. You watch a lot of ads and inbetween you get something you actually want to see, like a film or music clips.
While this is a legitimate concept, the return on your invested time is very little. So when you earn Bitcoins from these advertising sites, the Bitcoins actually come at the cost of your time. As the saying goes ‘there is no free lunch’. But see for yourself, here is a list of some of the sites that I find interesting. Click on them and start making free bitcoins.