Starting a community blog has been proposed a couple of times, to a fair amount of support, but nothing has ever gotten off the ground. StackExchange already has a platform for site blogs, and a number of our sister sites have successful blogs.
I'm proposing the idea once again, but in light of the previous threads I am going to assume there is some interest and jump right into figuring out the details.
Highlighting and expanding on great posts on the main site.
Short exposition pieces on interesting mathematics, primarily at the advanced high school to advanced undergraduate level.
Current events of interest to the mathematical community, such as major conferences, outreach efforts like Mathematics Awareness Month, and major awards like the Fields and Abel medals.
Very general outlines of the work behind recent major breakthroughs, or concerning the status of potential breakthroughs, such as Mochizuki's claimed proof of the ABC conjecture.
Reviews of new math books (or even old ones that contributors have read recently).
Non-scope: There are some things which a site blog might well contain which I think we should avoid.
Posts about Math.SE itself: I think these should stay on meta.
Posts at a very high level: Posts on a site blog should be accessible to a large portion of the community. At a high level, not only does someone need to be very advanced to understand it, but they will probably also have to work in the same field, severely limiting the scope.
Frequency: 1 post/week but subject to change. We have a large community of active and involved users, so I think this is quite achievable. For example, this would only require 12 contributors posting every 3 months. The ideal frequency is high enough so that people's posts come out not too long after being submitted, but low enough that we can maintain a small buffer in order to stay on schedule.
Management: I think the blog should have 2-3 administrators, who can approve posts for publishing and could maintain a Google spreadsheet with the schedule for upcoming posts. Post ideas could be proposed and discussed through a dedicated chat room. Posts in progress could be shared via Google documents or a similar such service. The process would look roughly like the following:
Post idea is proposed in chat and okay'ed by community and at least one admin.
Contributor writes rough draft of post and shares it with the community. The community offers suggestions to approve the post.
The contributor produces a final draft which is okay'ed by an admin and added to the schedule.
I have two questions for the community:
Are you interested?
What changes would you like to see in this proposal?
Assuming there's interest, I will incorporate the feedback into a revised outline for the blog and make a new thread soliciting starting administrators and contributors.