I am looking for a set of blogs to follow from an OR software developer perspective. I know we have discussed OR oriented blogs before (see here and here), but I want to differentiate this a bit: I want some focus, lessons or entries from an OR/mathematical/statistical software development perspective. I also know that we have quite a few OR software developers in this community, so I would be curious to know what they follow in this regard. I have also found that blogs of people from OR consultancy community are sometimes quite valuable in this regard, since they end up using these software and can provide some insight onto the challenges they face (Erwin's blog comes in mind).
Here is my collection so far (starting from Mike's blogroll, INFORMS blogroll, OR-Exchange directory and then web search). Quite a few of these blogs are from software vendors, and often posts are about new releases, but I have found good posts on and off from these ones.
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