I found this site, and is one to give a try. You will spend just a few minutes if you are not interested, but if you like it, you will spend a lot of time. I found interesting the concept of the site.
1) To ask a question, first answer a question. 2) Please make your questions questions and your answers answers. This is not a place for random shoutouts or freewheeling self-promotion. If we find your entry obnoxious, we reserve the right to remove it. All the rules.