Using the latest version of FireFox and viewing the second link you listed above, half way down the page and hovering over the blue blankness on the right, I received a block of advertisement directly over the content on the left, no where near my mouse.
Also, thanks for understanding that I'm not just trying to be rude about your service, it does have it's place, especially once the bugs are worked out.
As far as adding networks I think you should target setting up programs with people like CJ, Maxbounty, and Clickbank.