David Musgrave, now of WinthropDC, used to work at Microsoft and was the main author of the Developing for Dynamics GP blog which was part of the msdn blogs. This blog was an absolutely great resource on Dynamics GP, especially on more technical areas.
However, showing the impermanence of the Internet, earlier this year Microsoft announced that they would be closing down that platform. In order that useful posts weren’t lost, David has downloaded all of the old posts from the blog, which he deemed still useful on current versions, and imported them onto his new WinthropDC blog.
All of these posts have been categorised as Developing for Dynamics GP; in time they will also start to show up in search engine results.