I am looking for a blogging platform that has built in tools for programming-related content. For example, I've seen blogs that have line-numbers, color-coded line separation, code-formatting and tool tips for copying and pasting code-samples. Some of these are better than others. (I'm sure I'm not the only one here who gets annoyed by blog entries with posted source that you can't copy without also copying all the line numbers). So, my question is what blogging-platform does the community recommend for a developer-oriented blog?