Wiki vs. Blog
Well... for me, I guess there is no contest. A wiki is more of a knowledge store, card space, card file, hyperlink database, call it what you want... It stores and structures data in a way I find helpful and manageable.
I think it is safe to say this blog has been abandon. More of the same but with more frequent posts and updates can be found here https://wiki.umn.edu/twiki/bin/view/CraigGjerdingen/WebHome