It just occurred to me that Slava is doing something a little innovative with this blog. Most articles with code in them use sample code to illustrate some abstract idea. Conversely, most articles about working systems are written at a feature level. Slava is producing posts about a real system, organized around real code. It's a kind of documentation, really, but a publicly accessible, general-purpose variety. Now that I think of it, I'm surprised that this is not more common. Can you guys think of other instances?
Ola Bini has done something similar with his blog posts about Ioke.