Tips (Beginners):

After you register on the site and be logged in the system simply browse the link "My Earnings" or similar you will find what you already won.

In the link "Paid To Click" is where the paid advertisements are listed.

Each site releasing a number of advertisements a day. (Caution links "Anti-Cheat", which are the links where they try to withdraw all those who use programs to automatically clicking for them).

In the link "Request Payout" / "Cash Out" or similar which is, after you've reached the minimum, you can ask your payment to the site.
In some sites advise you to click advertisements that for points as they may be exchanged pro money. In some sites the links of points can be found on the link "Paid To Click" others have a special area that can be identified as "Point PTC" or similar.

There is also a minimum of points to be exchanged for money it varies from site to site. To exchange your points for money there are two areas "Sell / Buy Points" where you put your point to sell to any person registered on the site. The other area is "Point -> Cash" or "Convert to Cash" or similar is where you will automatically exchange their points for cash.
It exists in most sites the link "PTC Contest" which often already is related to "Paid To Click" which is where the site offers a small bonus for the person, that after a certain amount of clicks, receive a small amount of money directly in your site.