As much as I like Quora, I don't think it is growing as fast as it should have as they rely heavily on search engine traffic for new user registration.

I won't be surprised if they add linkedin like features of networking and may offer quora groups, the whole site still looks very beta.

Somewhat surprising. I'm just a data point, but I rarely hear, see, or visit Quora anymore. I don't honestly see the difference between it and heavily moderated sub-reddits.