How many Q&A sites are on the Internet?

I would guess thousands.

Hundreds or thousands.

Maybe in the 6 figures area.

A lot, but Fluther is the only one that matters IMHO. :)

I would think quite a few, but most are going down the drain. I would be very surprised if there was another one as nice as Fluther.

The entire internet is a Q&A session.
Fact.

Over 9000…...

I hope you don’t include the ones who send your password !! as well as your username to your email address, right there to be bumbed into by whoever happens to access it. They should never do that. And they should ask you to click the link to verify it is you, before allowing loggin in. Some of them have professional sounding name but…

there are definitely a lot. But I would take a guess that fluther and yahoo answers are of the biggest