Attribution-ShareAlike, to be precise. Copy away, even for commercial purposes. The sole conditions are: 1) you have to credit me (attribute the work) and b) whatever you use my work for also has to be CC licensed.
As SVO is coming up on its five year anniversary, I’mcleaning out some closets and setting a few things in order. I thought I’d done this when first setting up the blog, but it appears that it slipped my mind. For five years.