Short answer: No Longer answer: What exactly is a 'blogging innovation'? Something that helps you run a better blog? I don't think Quora qualifies as that. I

Short answer: No Longer answer: What exactly is a 'blogging innovation'? Something that helps you run a better blog? I don't think Quora qualifies as that. I know a few people who are attempting to use the posts feature as a sort of blog, it is not quite the same as an open blog. It is more like a Twitter follow on a access limited account. As someone loves Quora and is very grateful for it (so far, at least), I can say that they have innovated mostly on the technical front. Their differentiating factor is actually not technology. It is something that even the best of technology can find hard to solve - curation of content and the community. One thing I can certainly think of that Quora has done right is to dis-incentivize the A-list. There is no reputation score in Quora, your follow count means nothing in your ability to participate anywhere. You contribute most often because you genuinely want to. To conclude, I like Robert for his sincerity and passion, but his take on most technology and products are pretty poor.