For those of you who have been hearing about Twitter lately, but just don’t "get it" – here is a video from Common Craft that explains it in real terms.
Common Craft has a whole series of these "Plain English" videos where they do an exceptional job boiling down a tricky technical concept into easy-to-relate-to language; they include videos on wikis, blogs, RSS and social networking. Also, zombies.
Comment Craft videos have such a clever way of explaining social media tools.
At PodCamp Toronto, we started a twitter page: http://podcamptoronto.pbwiki.com/Twitter
If you’re new to twitter and looking for people to follow, you may want to check out twitter packs: http://twitterpacks.pbwiki.com/
Happy tweeting!