Radiant CMS is a small CMS written in Rails that looks full-featured without being bloated. If I were to design a new semi-static site, I think I’d probably give it a whirl. It’s got quite a few extensions, too.

There’s also a Twitter gem that Rails (or just plain Ruby) developers can take advantage of. Without actually trying any, it seems that Fleakr may be the best available gem for Flickr. There’s also flickr-fu. Most irritatingly, the top gem, called “flickr,” seems like it hasn’t been worked on in a long time and never left alpha.