Joel Spolsky explains why your company blog shouldn’t be all about your company:

These days, it seems like just about every start-up founder has a blog, and 99 percent of these bloggers are doing it wrong. The problem? They make the blog about themselves, filling it with posts announcing new hires, touting new products, and sharing pictures from the company picnic. That’s lovely, darling — I’m sure your mom cares. Too bad nobody else does.

Most company blogs have almost no readers, no traffic, and no impact on sales. Over time, the updates become few and far between (especially if responsibility for the blog is shared among several staff members), and the whole thing ceases to become an important source of leads or traffic.