Social networking websites and lawyers

Is this a trend? I've come across two articles in the past couple of weeks about how lawyers are using social networking sites-NOT. The ABA Journal asks its readers "are you suffering from Facebook fatigue?" and Law Technology News reports that although social networking sites report millions of users a very small percentage of young lawyers actively keep up with their social networking sites. The numbers they provide are: MySpace.com reports having 60.1 million audience members, Facebook reports 22.6 million, and LinkedIn reports 4.8 million ; but only 8% of young lawyers feel that these social networks are "very important" for professional networking. Given the famously demanding work schedules of young associates and the amount of energy required to keep up with all the social websites it's not surprising.