There are 2 different clicking schemes on the Internet.
1) Publisher Ad Networks - Place the company's ads on your website and let our users click on them. (no clicking on your own as you will get your account suspended)
2) Ads Clicking - Good but it is time consuming. I have experienced this before and I have wasted $$$ on it before where it says you can earn $5k a week
You provide the payment to them and once clicked the links you may/may not get the funds. Most webmasters/webmistresses wants traffic and funds, they don't send out cash. Unless they really want to boost up the community.