After discussing this with the community--and then bringing it up to the Stack Exchange people--we now have an official community blog: bicycles.blogoverflow.com. As you can see, there's nothing there just yet.
We'll be adding accounts for those people who volunteered to write posts, and you'll get notifications to the email addresses associated with your Stack Exchange account on Bicycles. Once you're added, please feel free to write a post and submit it. Let's get a few posts up so we have something to talk about.
If anyone else wants to give this a try, please give us a shout. For now, frieheit and myself are the blog Admins, although that will, I'm sure, change over time.
Anyone have an idea for a post? You have a favorite question on the site and want to talk about it? Go ahead and write a blog post, or maybe tell us about the idea here to hash it out.
Remember, blog posts are not pages on this site. They can be anything related to bicycles: The story of your latest bike ride, a rant about how people won't shut up about the Tour de France (or how people don't care about it, those Philistines!), a blurb about your favorite bicycle website (here's mine), whatever you like. The only requirements are that it be interesting to somebody.