My posting frequency has recently almost flat lined; In 2003 I think I had a few weeks where I had a post everyday; Q4 of 2007 saw one post. It will all change now! Of course many blogs have a last post saying something like this; how they haven't posted in a while but that that will be different from now on.
First of all, I changed my blogging platform. My blog has been running on something homegrown from the beginning, but ultimately it just isn't worth writing your own thing, so I switched to blogger.com. They support subdomains, so you hardly see it (blog runs now on blog.douweosinga.com). I imported the old posts but haven't gotten around importing old comments. Bloggers API is pretty neat, except for the fact that it doesn't support posting more than 50 posts a day, but doesn't report errors.
The other thing is that we're off to India for six months. I'll keep working for Google, but now in Hyderabad. If that change doesn't keep me blogging I don't know, so do check back.