I'd like to see the blog become active again, but I don't think I have the time or energy to lead it. In the past, it's been a useful venue to talk to Calagator users and potential contributors about what's going on with the project, and how they can get involved.
Here's the history behind having two mailing lists:
The pdx-tech-calendar list was the first piece of the Calagator project to exist. At that time we didn't have a name for the project, but needed a way to get local people involved in determining what we should build, and scheduling code sprints to do it. It hasn't been very active for a while.
We added the calagator-development mailing list later to have a point of contact for Calagator contributors, whether or not they live and work in Portland. As more people look to using Calagator in more places, it seemed like a good idea to have a home for development conversations that wasn't geographically limited.