You must have heard about Twitter. If not — Twitter is a social service for posting short messages that other people can subscribe to. It is being used by millions of people worldwide, which makes it one of the largest information distribution networks.
Last week we introduced a feature that allows associating a Twitter account with a wiki and posting selected activity information directly to Twitter. The mechanism is dead simple, but we can already see users find it useful, especially for wikis with community-generated content.
Not only it might help your users keep up-to-date with your site, but can enormously help promoting your site through yet another social tool.