Yahoo Pipes can take some getting used to. The slogan for it is “Rewire the web.” What it allows you to do is work with RSS feeds to combine or filter them to create your own custom feeds. Instead of having to write your own program in PHP, or something similar, to do this, Yahoo provides you with a nice graphical interface where you literally “wire” blocks together to combine feeds, add filters, and make other modifications that help you create your own custom feed. I use it in combination with Google Reader to read some of the local newspapers. Here are a few of my pipes: