I have been a little negligent in updating the Blog links in the left column. Here are a few new Blogs that you may find useful.
Cad Insider by Roopinder Tara, Editor of TenLinks (an incredibly useful site for all segments of engineering). I am sure that his Blog will be just as useful.
Civil 3D - In The Trenches by Stephen Sherrill. As a non-reseller he will offer a unique propective. (I saw this in Jason Hickey's Blog)
Lastly, Cadopolis is providing a page that captures many Blog feeds and contains several Topics (channels).
These should be added to the left shortly.