Do you love large crowds where billions of people congregate (Facebook/Twitter/et al) or do you prefer a small niche that fits you? Why?

I don't think of Facebook or Twitter at all.

I don't know how to use them or what they even are for.

I guess they are like cities in a big country.  You can have a lot or a little bit of everyone on those sites.

This is the only site I go to.  I just am not a social butterfly.   If I need to advertise my career, I might get on Facebook.