Probably one of the best sites mined Bitcoins: ore-mine.org. It is a site which is passively earn Bitcoins. All you have to do is to acquire mines and collect those Satoshi produced every 8h. The time allocated for this site is about 1 / minute per day, ie fixed as login and give 2-4 clicks on the collection of fields.
There are 5 fields collection, each production will stockpile the 8h. If you do manage to enter the site within 40 hours to collect Satoshi produced, the storage capacity will be 100% and production will stop.