Over the weekend theSpoke (a Microsoft run student community - closely tied to the Imagine Cup) was upgraded to the new version (previously running under beta at thespoke2.net). I noticed because all the RSS I was pulling from blogs on the site was 404'd during the transition. Unfortunately even though the site is online again, they are all still broken. RSS URLs of the form http://thespoke.net/myblog/username/RssFeed.aspx have changed to: http://thespoke.net/blogs/username/rss.aspx I think some "301 Moved Permanently"'s should have been (and still can be) put into place (most modern aggregators are pretty intelligent about these things nowdays). Breaking a lot of links for a large number of users is not a good thing. This is definately not difficult to implement given the direct correspondence between URLs. Update: Ok, so I went ahead and changed all the URLs in my aggregator, refreshed, and? They also changed all the GUIDs. So that means a bunch of annoying unread items that I've already seen!