Though I don't make a habit of commenting unless I can offer constructive feedback, I enjoy reading this blog and check for updates whenever I sign onto the forums, which at the moment is pretty much daily. It's a nice resource for new players, perhaps particularly for the unaligned who are unable to take advantage of a more experienced member's guides. As you've noted in responses to feedback in the past, this also is good for raising awareness of and interest in trade circles and tech dealing, which benefit everyone.
I hesitate to suggest other topics because I don't know how much of your economy work you'd like to post in public versus how much you'd like to keep to your alliance. Environment effects is my own favorite mechanics topic and I've worked on it a fair amount, but since it seems to be less widely understood than improvement swapping, sledding, and trade circle strategy, I'm not sure whether you'd want to discuss it on the community boards. Likewise, I'd be interested in your thoughts on improvement and wonder purchase order, to see how your opinion matches up with my alliance's guides if nothing else.
I'll keep thinking. But please do continue with this blog, it's a valuable resource and a pleasure to read. Thanks for sharing your ideas.