Not really. Its more about me being helped to maintain my contacts over time (and occassionaly remembering to be y'know, sociable) and then being able to aggregate that. If I am looking for someone self-labelled as a good Perl programmer I could trust LinkedIn - or I could hire some good Perl guys and then ask them to scan their contacts list.

hmmm, that still sounds like LInkedIn but its not what I am after...