tagvillage bazzar? what is it? where is it?

Tweet

So on a comment I got to a post I had made the other day someone brought up some tagvillage bazzar thing. I try googling it but come up with a few websites to go to. I do not want to wind up joining the wrong stuff. So Where is the correct place to go? What exactly is this website for? How do I do it. Is it a good website? Have you tried it and do you like it?