Hmm… good question. Just as there are best practices for how often to send an e-newsletter (monthly is a good bet), so is there an etiquette for how often to blog.
I've been reading up on this as well as scouting around to look at the date stamps on some other Weblogs. The one-word answer is “regularly.”
The second part of the answer is to be upfront and tell your audience what your blogging schedule is going to be. This applies whether you consider your Weblog personal or an adjunct to your business site. I confess.
In the rush to get this blog launched I neglected to nail down that detail. For now, expect a new post several times a week. No promises to blog every day.