Social Media in Law Firms

Why are there no large law firms listed on this list? Are large law firm's engaged in social medial beyond blogging?

Jeremiah Owyang of Forrester writes:

Understanding how companies staff, organize, and prepare for social media/computing is one of my top interests personally and professionally. Having been a former Online Community Manager at Hitachi Data Systems, I want to make sure companies do it right. I’m often asked which companies have one of the two emerging roles, (companies love to benchmark against their peers) so I’ve decided to start a list.

The first role is the Social Computing Strategist, the second is the Community Manager, although the titles vary, and sometimes it’s a part-time function, there’s clearly a trend as corporations staff.

It’s important to note, that in the end, these skills (the ability to communicate online) will disperse and grow to many employees. Generation Y comes to us with these abilities built it as a “digital natives”– yet the need to organize will still occur, it’s a knee jerk reaction to every corporation.

Is there room for social media in law firms, both large and small?