The Million Dollar Homepage is a website conceived in 2005 by Alex Tew, a student from Wiltshire, England, to raise money for his university education. The home page consists of a million pixels arranged in a 1000 × 1000 pixel grid; the image-based links on it were sold for $1 per pixel in blocks. The purchasers of these pixel blocks provided tiny images to be displayed on them, a URL to which the images were linked, and a slogan to be displayed when hovering a cursor over the link. The aim of the website was to sell all of the pixels in the image, thus generating a million dollars of income for the creator. The Wall Street Journal has commented that the site inspired other websites that sell pixels.
Click here to see the actual page. Alas all pixels are sold out.