Excellent post, Nathaniel - you've hit the nail on the head. Of course I'm biased, since I started socialfinance.ca to learn about, and create a space for conversation around, social finance. As you point out, I'm now getting better at identifying what I'm really passionate about in the space, as well as making connections to people who share these interests (like you). And I think for our generation, social media is built into everything we do, and we almost expect seamless transitions between online and offline conversations. We're not there yet fully, but we're clearly making some great strides (see SoCap08)!
I think you raise an important point: "if you blog, you blog hard"... it does take time, effort and commitment. And often success is not measured just by the number of comments that people leave, but by the number of times your blog posts are visited on Google Reader, starred, and shared via feeds, Twitter, email, facebook, etc... as your posts tend to be!
Hey Nathaniel - excellent posts recently (esp. the Obama-related themes), and glad to know that you're also optimistic around career prospects and job opportunities