I'm still in the process of tagging the older stuff, but now that I've moved to Wordpress, I now have proper categories and such.
There is a drop-down box under the RetroGaming logo and i also have a Topics page (although it's pretty bare-bones right now):
http://www.racketboy.com/pages/topics/
I'm still tweaking some of the layout and new features, so let me know what you like and what you don't
Ron Heft (aka cavemonkey50) did some great work moving me over from Blogger:
http://cavemonkey50.com/
http://ronaldheft.com