What other Question-Answer websites have you visited? Which do you think is the best?

I don't know of any but would like to. Sometimes this site is full of kids and I want some mature questions and answers. I hope you get a bunch of answers.

I refuse to look for any other Question ans Answer site because this is the best site in the world today. No other site can compare to this one.

I like this one. I'm a member here for almost a year now.