Myself and Antony Clay recently delivered an excellent (if I do say so myself 
) presentation on the use of Web 2.0 technologies in the legal sector.
This was delivered at Legal Insight to an audience of top legal IT directors and IT professionals.
The presentation was very well recieved and stimulated a great discussion on topics such as governance (striking the balence between the "open" nature of Web 2.0 and the "control" of information required in a law firm), Second life, Social objects, internal adoption, client/public facing adoption and many other salient points...
The audience included illustrious bloggers such as Peter Birley