Yedda has been operating for over three years, and became an AOL company almost two years ago. It's an ongoing, constantly growing, community, so it's virtually impossible to tell you how big it is exactly at any given moment.
If you have any more specific questions, you're welcome to raise them directly via email:
neta.silberg@yedda.com
Other people asked questions on similar topics, check out the answers they received:
Other people asked questions on various topics, and are still waiting for answer. Would be great if you can take a sec and answer them