Thanks for the link. I wouldn't necessarily call them similar though. One is a handy list of RSS feeds, the other a newsletter that summarizes selected articles.
Still though, bookmarked :-)
I wrote my own clustering algorithm in php and I use http://www.simplepie.org/ to parse the feeds. I will eventually open source it if there is enough interest. But the code needs cleaning up before I do that.
According to their book, they don't listen to feedback!
"That's why you start with no. Every new feature request that comes to us -- or from us -- meets a no. We listen but don't act. The initial response is "not now." If a request for a feature keeps coming back, that's when we know it's time to take a deeper look. Then, and only then, do we start considering the feature for real."
