I've seen a lot of sites that sell advertising in micro pixels? Whats the point of pixal site advertising?? Do they work? How can search engines use them? I can't imagine to many visitors to these sites actually click on the pixels?
it's a fad that was beaten to death and has since been replaced with another worthless mode of advertising known as the word cloud. Neither of these sites pass on any value, including PR and traffic. Just like you mentioned, nobody is going to sort through a bunch of pixels to find what they're looking for.
Because they're not smart Internet marketers. The smart person is the one selling the links, not the one buying them.
Almost nobody does I have one of those left from the days when they were popular but I was giving links free and just got some $ from adsense. now this is almost dead but the pr3 domain name is still usable for something else