I thought this was fascinating (note the screenshot). Someone tried adding the SEOmoz feed to their personalized Google page and found that Google was instead trying to pull data from socengine.com/seo - which is where SEOmoz was hosted until 3 months ago. The domain re-directs via 301, as does the feed, but Google still hasn't caught on, apparently...
Two additional screenshots:
- Adding the SEOmoz feed
- SEOmoz feed pulling from socengine.com/seo - obviously, it doesn't work.
The problem seemed to occur when I tried to feed google a malformed XML document. It's as if since it couldn't parse the document it tried to revert to an old source.
That's really funny! What can be the reason? Further, when I tried now, it worked. ;-)