If you don't believe "the hype" about the huge number of lawyers and law firms setting up profiles on the mega-popular social networking website Facebook, try a search on Facebook yourself (see above) using the terms "law firm" or "law office" or "attorney" and you can see this phenomenon for yourself.
The challenge moving forward for these law firms, is going beyond "establishing a presence" (i.e. merely setting up a profile and/or firm fan page) to "effectively" utilizing this new media technology (which has as many definitions as there are observers and consultants).
As Facebook continues to implement changes to various Facebook news feeds, the effective use of groups and fan pages as "media channels" to reach online networks is becoming increasingly important. Many lawyer Facebook users are not yet up to speed on the nuanced relationship between groups, business pages, and news feeds - but it can be simply stated as - folks who want content on a particular subject now get that content in their own news feeds via their group / business page membership.
"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.