These are some web sites that will pay you money to surf. They put a banner bar thing on the bottom of your screen with advertisements from other companies flashing on them. The companies pay these sites and the sites pay some of the money to you. Usually the amount is around 50 cents an hour which adds up to a lot. They aren't fake trust me, they send you checks in the mail. Not enough money to make a living off of, but a nice amount especially when its free.
All of the following sites have a referral system where you will be paid for everyone you get to sign up using your referral ID. Most pay you about 10 cents per hour for anyone you yourself refer and about 5 cents an hour to you for anyone they refer and so on(usually goes from 3-5 levels).
Refer lots of people, and watch the $ pile up!
All Advantage is the first paid to surf site that i know of and is probably the most reliable. This is where you should start. ($.50 per hour, 25 hours a month max)
CashSurfers is a fantastic program paying $.80 an hour for unlimited hours. Another new but quickly growing program, join fast and refer lots!
BePaid is still in its beta process but has a lot of potential. Their distinguishing feature is that they have full screen ads and will pay you $20-$120 an hour for it!!! Amazing isn't it? BePaid notifies when an ad is waiting for you and you watch it for about 20 seconds.
GoToWorld is similar to AllAdvantage, except you download a new browser, not only a bar. Easy to use. Seems to be very reliable! Surf 40 hours a month for about $.50. DEFINITELY ONE OF THE BEST.