Protopage was one of the first few sites to let users customize the layout and arrangements of pages that host small visual elements (often called gadgets or widgets), providing a portal-like front end of disparate types of information. Now that all the mayor players, headed by Google, Microsoft, and Yahoo, offer similar services, it might look irrelevant, but when the original Protopage site was launched, users were astonished:

http://www.protopage.com

My public page is at:

http://www.protopage.com/marcocantu