Oh, I forgot about the FeedBurner updates….
By February 28th, all FeedBurner accounts should have been moved to Google accounts. The main FeedBurner site has changed from feedburner.com to feedburner.google.com, but subscriptions and such should continue to work indefinitely with the old addresses. However, it would be wise to convert when you get a chance — in most cases, just replace “feeds.feedburner.com” with “feeds2.feedburner.com“.
I believe I’ve correctly updated the subscription links for this blog, so you may find it easier to unsubscribe and then resubscribe. In any case, if you have any problems or questions, please let me know.