LogBlog moved last year. I’ve tried to make it noticeable as little as possible–the RSS feed has been redirected for a while. So even if your feed reader is set to www.ucalgary.ca/~rzach/logblog/atom.xml you stil get the new posts. But you should really change it! (to http://www.ucalgary.ca/rzach/rss.xml)
And now I’ve also put in redirects from all the old pages, so no more finding an old LogBlog post and landing on a version where you can’t comment. If you do find one, please let me know!