I am probably not a very representative person, especially as the last few weeks I have been so busy I have not had time to do much forum work. I prefer quality to quantity, so only visit one or two forums (apart from BizFace of course).
I am sure I should do more, as I am told it would be good for BizFace, but it takes up so much time, and once you get to 'know' people, as with this forum, I prefer to stick to it - I guess that is a very positive statement for this forum though!
I think I go to around five a day at the moment. It used to be a lot more months ago and got me a bit lazy on the studying so I had to make changes. I finished that big part of my studying now so if I need to visit more sites, I have more time for that now.