Hey, I'm new to the area and I want to know the single best way to find out about less general/vendor specific, and more language (or technology) specific tech events that are going on.
Seconding jazondenizac's answer, and I wrote an answer to a similar (but not exactly the same) question to this recently that I think might help somewhat. http://news.ycombinator.com/item?id=4681717
Obviously beware that not all facets may apply 100%.
I'm not sure if there is a single site/app for that, but it really helps if you are keeping an eye out for these things in your twitter, facebook, google+ streams.
I don't have many people from SF Bay area on my twitter, but I still found out about a couple of tech events, while I was there this summer.
Obviously beware that not all facets may apply 100%.