I wanted to open up the topic to discuss ways to encourage or incentivize users to fill in information in a user profile on a website, such as skills, location, organization, etc. More information in a user profile can give a website an improved capability for its users to search, network, and collaborate.
Without bugging users to fill in their profiles (ie - via annoying e-mail reminders), what other ways have you guys come up with to encourage user input?