Google adsense is one of the well known money making program .Requirements for joining this program are, you must have
1. A website or a blog.
2. A Gmail account.
In Google adsense site you have to fill a form.Google will take less than 1 week to verify your application.After verification Google will provide ads to your website.
You will get more information from Google adsense site.
website url: https://www.google.com/adsense
Some of other sites share revenue of their Google ads to their members.
Indiastudychannel is a revenue sharing site .This site share about 90 % of their Google adsense revenue
There is a lot of other sites like indiastudychannel who share their revanue.
Website url: http://www.indiastudychannel.com