In the couple of weeks since I started blogging:
1) A colleague at Advisen started a blog to promote a series of educational initiatives for our subscribers. Very little of our freely-available content shows up in Google searches. Blogging allows us to target particular niches of the insurance industry with relevant content and to offer sponsors additional ways to connect with our audience. We are also looking to link to other bloggers with great content relevant to commercial insurance professionals.
2) I relayed an idea to Fred Wilson who's AVC Blog I read daily and Fred responded with a nice note.
You have to start somewhere and I can see more of where it can lead.