I may need to find a better tool than google reader for this type of feed.
Like David C, I find Thunderbird a very useful RSS processor. Even if you don't use it for E-mail, you can use it to monitor your feeds and have Thunderbird's filters and message rules organize topics into folders with highlighting and lots of other useful features for you.
There are probably lots of other open source RSS readers out there that would benefit from a better RSS feed from arduino.cc.