This one falls under the 'why the heck didn't I think of that' category.

There is a web page that is selling adspace by the pixel. At a cost of one dollar per pixel, and a typical screen containing one million pixels, www.milliondollarhomepage.com was born. Alex Tew created the site as a way to make some cash for University. For an investment of a couple days to build the site, and basic hosting fees, Alex figured what the heck.

"I thought this could be something crazy enough to work! Because I think people like crazy/quirky ideas. If this captures people's imaginations and people check out the site, then the pixels on the homepage will have value - and people will buy them," Alex wrote when the site launched.

The first week Alex made $900, which he admits was more than he expected. Imagine his surprise when just one month later he had sold $240,000 worth of adspace. Even if he never sells all of the pixels, Alex's University costs are covered and he's got a nice nest egg to start his life on.

Several dozen 'copy-cat' sites have launched with varying degrees of success.

Pixels for dollars. And to think, here I am trying to get by selling the letter 'O' for a nickle.