Alex Williams in my office sent me this email. Not sure of the source, but it hits the mark
WIKIPEDIA
Benchmark: You didn’t create your own entry.
Perfect for: Filmmakers, playwrights, Ashlee Simpson.
When you’ve made it: No one has any idea that your best friend wrote about your “vast, impressive contributions to the modern cultural landscape.”
When you’ve really, really made it: You are no longer disputed for neutrality.
MySPACE
Benchmark: More than 10,000 friends. 50 comments. You are online now.
Perfect for: 12-year-olds, musicians, Dane Cook.
When you’ve made it: Your Top 8 is la creme de la creme of Bratz fans with saucy, up-to-no-good stares. Your comments cup overfloweth.
When you’ve really, really made it: You and Tom talk, like, all the time.
YOUTUBE
Benchmark: You’ve been downloaded 50,000 times and passed around more than a New York socialite in the Hamptons on a long holiday weekend.
Perfect for: That dude in Romania with the Web cam, comedians.
When you’ve made it: You are linked to on more than 100 different Web sites. The words “blog” and “spot” have never sounded quite so sweet.
When you’ve really, really made it: When your video crashes the site. You’re called to direct a music video.
TECHNORATI
Benchmark: You have more than 50 inbound links.
Perfect for: College students, Vanity Fair writers.
When you’ve made it: There is serious blogometric pressure. Serious.
When you’ve really, really made it: You made Cory Doctorow giggle.
FLICKR
Benchmark: You have been “favorited” more than 300 times.
Perfect for: People with hands.
When you’ve made it: You get tagged more than an NYU freshman on a highway overpass.
When you’ve really, really made it: You have just blogged your pants. You are not sorry.