I uses Yahoo Pipes for a project of mine—I depend on it, in fact. It's really useful if you're doing something service-based, say, if you need to make an RSS fe

I uses Yahoo Pipes for a project of mine—I depend on it, in fact. It's really useful if you're doing something service-based, say, if you need to make an RSS feed out of a website, or otherwise manipulate data. YQL (Yahoo Query Language) is more than a gimmick; it's useful. It does seem to be under active development, and I hope it lives. EDIT: here's an example Pipe that fetches a web page (Pinterest) and turns it into XPath, and then uses XPath queries to construct an RSS feed. Interesting stuff you can do!