Social Networking and It's Learning Potential

I have used social networking profusely both in my learning of photography (a hobby) and in facilitating my theatre practices. In photography I try to meet new photographers and make friends with them. Then we share flickr accounts so that we can comment on each other's photos. This has been invaluable to developing my skill.

In theatre I have used facebook in finding actors, advertising shows, coordinating rehearsals, and such. It's nice when I've misplaced actor information to be able to log on to their facebook page and find some info to contact them, or at least to post something on their wall.