Less than 10. I can't stay in control of stuff unless I can count what I manage on both my toes. I have 1 non-profit(not regularly maintained), 1 business site(not regularly maintained), 2 blogs(1 is not regularly maintained, the other one is) and I'm working on building online assets(I'm not revealing it though) EDIT: BTW I run for sustainability, it's hard to build 200 successful sites without dying from lack of sleep and turning into the spam Rockefeller.
5 blogs , 3 websites .. wow that guys have a lot of guts, they manage more than 50 sites. what a superwebman
50+ blogs spells out quantity, not quality. It actually screams out quality sacrifice, "I'm not interested in the content, I just want a buck...".
The poll is now closed, but my answer would be less than 10. To be more specific, i run 4 websites online