Finding blogs about text-based MUD development is hard. But I've always thought that if there were a well moderated aggregator that collected together quality blogs of relevance, then it should act as a magnet for other programmers to request that their blog also be added. So here it is, an aggregator seeded with a variety of relevant blogs that I searched long and hard for. The aggregated feeds are restricted to tags and categories that are directly relevant to text-based MUD development. If any blogs were too broad in subject, I emailed their author and requested use of MUD-Dev related tags or categories and refrained from their inclusion.
If you want your blog added, you can find my contact information on the Planet web page.