It has taken them a while, but at last O'Reilly CodeZoo has included RIFE in their project listing. Check out our fresssh Zoo page 
If you have any tips or opinions on our project, don't hesitate to submit them and provide your rating!
Sadly, even though the project homepage clearly says Java web application framework right at the top, they only listed it in the Web Programming > Template Engines category. I contacted them about it and hope they'll list it with all the other web frameworks in the Web Programming > Server category too.
One thing that strikes me like odd about CodeZoo is that they crawl for all the downloadable files automatically. This is weird, since they can't be sure they pick up the correct file. For RIFE, the main download is the entire source archive, which is quite pointless for most developers. They should have put the RIFE/Jumpstart archive there instead. Since this is however located at another java.net project domain, the crawler didn't pick it up.
Update: Wooow these guys seem to move fast when you provide feedback. They've already added RIFE to the correct categories and setup their crawler to pick of the RIFE/Jumpstart archive as the default download. Way to go! The minor downside now is that the default download is currently broken since the crawler has to download the file first.