if this makes sense to you
Sometimes the best way to find your peers is to start speaking loudly in your native tongue and see who talks back. So here's a diagram I drew after laughing at this post. I've drawn this sort of thing a number of different ways, but never as a Venn diagram. There's tons missing, but I kind of like how vague it is. Feel free to annotate it here on Flickr. Cheers: 
Participatory Culture And The Empowered Media Prosumer