I've been meaning to do this for a while and just got around to it. I've added some labels to my posts and have links to the labels in the right hand column. I don't know if they're very good, but they might help people find things better. Hope it works out okay.
I did notice that some of my posts had errors and I corrected them. Which had the unintended side effect of re-publishing those posts at the top of the list. So now they're not quite in order. Oops.