I've been writing a lot of adware lately and am utterly confused on what is legal and what is not. The entire PPV industry is based upon adware and so it can't be too illegal cause there are multiple companies making a ton of money off that traffic. I realize there are probably no attorneys here but getting a sense of everyone's ideas might help me out a bit. 1) Is it legal to inline your ads inside a page or do you have to pop a window or place your ad in the toolbar area? Is there a difference and if so why? 2) Is it legal to replace existing ads on a webpage (eg: facebook/google ads)? I heard claria/gator company got sued for this a long time ago -- so is this a case of get away with as much as you can and expect at some point to fold your cards?