For the last couple of years, I've undertaken the thankless task of trying to maintain a list of active bloggers on WPF. Unfortunately, I've let it languish for a little while, so I've taken some time out to revamp it completely: making sure that people still are actively blogging on WPF-related topics and checking that all the links work.
At last, I'm pleased to present the latest list. I've added a new section for WPF/E blogs, removed a few somewhat arbitrary subcategories in the organization, and greatly expanded the list of independent community blogs (with some selectivity - I've not included everyone who has ever included the term WPF on their blog, for obvious reasons). There's an OPML version as well for easy importing into your feed reader. If you have IE 7, for some reason the feed import function is pretty buried. Hit Alt+F to bring up the "hidden" File menu and then choose the Import and Export menu option.
Hope this is useful - apologies in advance if I missed anyone.