I was looking into signing up for the Adsense thingy at Google the other day and an idea occurred to me.

 

How hard would it be to create some kind of bot program thingy that sits there on your computer all day clicking on adsense links on websites? The sites would have to be chosen from a list, and the list would be the sites belonging to all the people using the program.

 

In other words, ten people all agree to click on each others' links. Against the rules, probably illegal, and certainly unethical. But I couldn't help thinking of it all the same.