how click increasing site and sofware works??

i have heard and saw from net that some sites can increase page clicks very much . it automatecally increase page impressions . how they do that ? and whether it is legal ?

[crashuniverse]

see its ur script n u can do what u like to do. programmin' is alwasy legal unless it harms somebody. counding never affects anybody, and in case it does i dont have much idea of cyber laws then.

i havent tried it yet . will try on my one dead site . can it used with google addsense..

[siriusb]

No, they are explicitly forbidden to be used to generate AD revenue. Google says they can detect such clicks and says it will take action.

ok but main question how they do it?

[QwertyManiac]

This one is a good site on how google works, though nobody knows how it actually does coz they dont reveal thier algos ...
http://searchenginewatch.com/serepor...le.php/2166431