One very popular Twitter list is Scoble's Tech News Brands list: http://api.twitter.com/1/Scobleizer/lists/tech-news-brands/statuses.atom?per_page=200
I've got a program that's been watching this feed for a while now. Just yesterday I started getting some XML parsing errors. I can create a hack to make this work again on my end, but it's definitely best for Twitter to make sure their XML is well-formed. Here's what feed validator says: http://validator.w3.org/feed/check.cgi?url=http%3A%2F%2Fapi.twitter.com%2F1%2FScobleizer%2Flists%2Ftech-news-brands%2Fstatuses.atom%3Fper_page%3D200 > Sorry > > This feed does not validate. > > line > 482<http://validator.w3.org/feed/check.cgi?url=http%3A%2F%2Fapi.twitter.com%2F1%2FScobleizer%2Flists%2Ftech-news-brands%2Fstatuses.atom%3Fper_page%3D200#l482>, > column 73: XML parsing error: <unknown>:482:73: not well-formed (invalid > token) [help <http://validator.w3.org/feed/docs/error/SAXError.html>] > > <a href="http://www.google.com/support/youtube/bin/answer.py?hl=en&answer=16 > ... > > It looks like whenever a <twitter:source> of "Google" appears, it breaks the XML because of the ampersand in the URL: <twitter:source> > <a href=" > http://www.google.com/support/youtube/bin/answer.py?hl=en&answer=164577" > rel="nofollow">Google</a> > </twitter:source> > If the ampersand is fixed, I'm guessing things will be happy again. I hope I'm sending this to the right place. Not sure where else to send it. Thanks! -Brandon -- Brandon Stone http://brandonstone.com http://twitter.com/LBStone