Are the RSS feeds not active yet?  I tried clicking on them and got nothing.

 Also, I would find an RSS feed for the total site quite useful along with the sub categories.  For example, here's how Strategy+Business do theirs:

http://www.strategy-business.com/all_updates.xml

http://www.strategy-business.com/organizations_and_people.xml

http://www.strategy-business.com/china.xml

Obviously your categories would be different, but I do find this approach quite useful.

Thanks!   /jeff