Do you run multiple blogs? But do you want to give your users a single combined feed of everything that you write about? Do you want to group your photo and bookmarks feeds together into a media feed? If yes, then you should check out FeedDigest, a service that lets you combine multiple feeds. You can then publish them as a single “digest” or you can refine the output by using search strings. Besides choosing the feed name and URI, you can also choose a language, encoding and how to order items. Once that’s done, you can choose from a number of default layout options or even edit the HTML and CSS on your own if you’re feeling adventurous.
FeedDigest strikes a good balance between features, customizability and ease of use. It shouldn’t take you more than five minutes from sign up to get your first digest up and running. But if you want something even simpler, without having to sign up, you can head over to Feedblendr. There’s no sign-up required, just put in the feeds you want to combin, hit the big red Blend Your Feed! button and you get RSS and Atom links for your new feed. There are no limits on the number of feeds, but don’t have the customization options of FeedDigest either. It’s up to you to choose which one you want.
If you’re looking for more heavy-duty stuff (like turning normal HTML pages to RSS feeds), check out this list of RSS tools and services. Keep exploring and come back to tell me about your finds.