I think the takeaway there is to try niching to a manageable segment of the user population at first.
I hate to rain on your parade (and this is admittedly extremely nit-picky), but those two statements are incompatible, unless you had email addresses from both institutions. Something like ten thousand students from Harvard, Columbia, Stanford, and Yale had joined the site before MIT was added.
And don't worry, that's not much of a parade to rain on. ;)
reddit: PG and Joel Spolsky talked about it. facebook: Zuck acquired the main harvard email list and spammed everyone. myspace: The parent company spammed all its users. digg: ?
I think spamming is almost inevitable. The plentyoffish guy spammed myspace (i think) and made lots of female sockpuppets.
I think Facebook started as a hot-or-not clone. Zuck went around to the college residences to scrape the pictures from the residence's face books.
“Today, two weeks after its inception, thefacebook.com has blossomed from about 650 members early last week to a network of over 4,300 student, alumni and faculty subscribers as of yesterday.”
http://www.thecrimson.com/article.aspx?ref=357543
“‘I have no idea why it’s so popular,’ said thefacebook.com creator Mark E. Zuckerberg ’06. ‘I was pretty surprised.’”
I remember checking it out the day it launched and leaving because it wasn't very interesting. I came back in October (about 3-4 months later) and it had some minimal traction. IMHO, the critical factor was that they added comments and people had started commenting on links.
Facebook was pretty well-established when I joined (fall 04, about 8 months after it started). People were using it as an address book - meet someone at a party, you instantly had all their contact info once you knew their name. And since there were pictures and it was organized by college, you could often pick out who they were from first names alone. There weren't many social features back then; IIRC, it just had Poke and the Wall.
If it goes well then find a bigger sponsor and do another game, slightly less local next time around....
I'd suggest not following by their example.