The Million Dollar Homepage
milliondollarhomepage.com
A frozen piece of internet history: in 2005 a student sold one million pixels for one dollar each to fund his studies, and the page has been preserved as it was.
Why it is useful
A fun artifact from the early advertising web, and a reminder of how simple ideas could go viral. Seeing the pixel ads, many linking to sites that no longer exist, is a time capsule.