I used the predecessor to delicious, alone, from 2001-2003. Then delicious took another two years, 2003-2005 to get to tens of thousands of users. So it took a really long time.
Firefox extensions and RSS helped a huge amount. And it was close to one of the first user data sites that had an API (before Flickr, I think...)
Firefox extensions and RSS helped a huge amount. And it was close to one of the first user data sites that had an API (before Flickr, I think...)