You already have KNewsTicker and you often hit the popular sites for the latest news. But have you tried Feedster, the RSS search engine? Now, the latest KDE CVS includes support for Feedster in the elegant form of a web shortcut. If you're not familiar with this KDE feature, be sure to read up on Enhanced Browsing (details). It is quite handy, especially in combination with KDE's Run Command (Alt-F2). And if you cannot wait until KDE 3.2, simply download and install this file and start using rss:, blog: and feedster: right away!
Fortunately, adding support for Feedster (and Google News) to KDE proved to be quite trivial. The man behind Feedster was so amazed, he put up a blog entry full of praise for KDE! If you're new to Enhanced Browsing in Konqueror, give it a try. Rest assured, you'll be posting happy comments about gg:, php: and the other shortcuts in no time.