"- "While LinkedIn.com is a free site, and intends to keep providing a free service in the future, it plans to launch a premium service that would have additional features around the end of the year."
- LinkedIn users accept 83 percent of referrals
- 840,000 members
- 10,000 are venture capitalists.
- Bay Area is the densest concentration of users, with 120,000 members there.
- Most members tend to be between 30 and 55 years old.
- 97 percent of LinkedIn users join based on invitations from existing members."