Since I've never really used either, I would say no. That's just my personal opinion, and not backed by any facts. I will say, however, that none of my friends

Since I've never really used either, I would say no. That's just my personal opinion, and not backed by any facts. I will say, however, that none of my friends and family use Quora, and most of them do not use Buzz. I sit in the camp that thinks Google created Buzz just to get something out there, and not to gain traction. If they wanted to do that they would have used the Wave-esque system.