Via Virtual Earth is a site for those interested in Microsoft’s Virtual Earth, and includes developer tips, articles, a Site Gallery, Blog, and other features.
James Fee runs this great blog that focuses on the development of GIS software, primarily it seems, on server side products. There is quite a bit of discussion of ESRI products.
There are several other Geography related blogs out there. While some of these are listed in the BlogRoll on the right, below this is not a complete list. As I continue to get the site set up I will include a page of links to many of these blogs and sites. For now, here is a link to Engadget’s GPS blog. I go to Engadget a couple of times a day just to see what is new in the world of technology.