In addition to my WinFX blog I'm also going to be working on this new dynamics blog, called Dynamic Bliss. This blog will cover client-side topics such as XML based, out-of-band procedure calling ("Ajax" though I don't approve of that name), ECMAScript dynamics, dynamic graphics, widget creation, other topics from my book and a few other browser-related topics.
This blog is the replacement of a book I was working on regarding the same topic. I'm a strong believer that blogging is the new book (for technology at the moment). Parts of the blog will include video chapters from the my video book as well as my Firefox Web Development Suite videos.
You can get to the blog here, Dynamic Bliss.