Twitter is a free and easy-to-use "micro-blogging" site that allows you to send and receive short updates from multiple users. David Barrett, The LinkedIn Lawyer is "Twittering" -- follow me here -- and keep up to date with news about Web 2.0 social media and the legal profession, with a particular focus on LinkedIn.
Here are the "Top Tweets" from the last week (partially as tracked with Tweetburner). David A. Barrett's Recent Most Popular Twitter Messages
"Facebook for Lawyers" is a 65 minute recording (audio and computer screen capture) of an online seminar conducted by David Barrett on how Facebook can be used as a business development tool for lawyers.