Web Singletons?
tcmb writes "There are an uncounted number of web mail and picture sharing services, there are more than enough web sites for online bookmark management and friend-finding, but as far as I know there is only one Internet Archive. Which are the true web singletons, services that exist only once in this form?" And does anything approach the singular time-wasting abilities of IMDB or Wikipedia?
I'd say /. is relatively unique.
Me lost me cookie at the disco.
The good part for the Internet Archive is they can't rip off the idea and do it better because they'd have to go back in time to get the data.