Who would have thought that there were this many (~200 international sites)
And I thought I was doing rather good to be involved, at least at some level with ~10.....
from Wikipedia: This is a list of major active social networking websites and excludes dating websites (see Comparison of online dating websites). For defunct social networking websites, see List of defunct social networking websites.
This list is not exhaustive, and is limited to notable, well-known sites.