Ask HN: Shared company or personal blog?

We're a small group of devs sweating in a start up. While none of us have blogs most of us expressed interest in writing them.

We plan to set up a company blog with articles directly related to the company and its products but obviously some of us want to write stuff that isn't. These would be professional blog entries (not vacation descriptions and such) but wouldn't talk about our production.

Should we allow everyone to write their articles at the company blog or should we just keep a listing of personal blogs?