Atrios has declared today to be Blogroll Amnesty Day, a time to purge those tired old links to sites that you’ve always got up on your page, but that maybe contain a few blogs you’ve grown tired of, or lacks the sites that you’ve been browsing recently. It’s a fine idea; if you feel like clearing boring ol’ Pharyngula off your list, go ahead, I won’t cry too much. It would be nice if you replaced it with some fresh new place that you like very much, of course.
I personally police my blogroll about once a week—I build it from the opml file from my newsreader, so I’m regularly adding new sites to it, and I’m fairly ruthless about deleting blogs that have no new content for 30 days.