I've noticed one cool thing that is very different than at the beginnings of 3rd edition ... our community is already here, ready to talk about it.  There won't be 8 months of news without a messge board to discuss it on.  There won't be months of word of mouth as this site grows from a few hits per day to thousands.  There won't be a string of new URLs as the site and the forums move around from home to home.  That's kind of neat...
Gah, help me remember -- did WotC even have real "forums" in '99?  They had some kind of newsgroup thingy as I recall.  And the WotC website was, what, the beholder with each eye as a hyperlink leading to different parts of the site?  And SKR was webmaster?