Feedweaver allows you to create your own personalized RSS feeds. You can create your own feeds by combining source feeds from your favorite websites, and use filters to choose what you want in it!
Combine mutiple feeds
You can combine multiple RSS feeds into one. For instance, you can combine the RSS feed from cnn.com, times.com and bbc.co.uk into one RSS feed, which later on can be customized by yourself.
Customize your feed
Customize your combined feeds by using keyword filters. For example, you can extract all the news about "iPod" from your feeds with just one click.
Share your feeds
You can easily share your feeds with friends by giving them the feed's URL, and they don't need to login to view the actual feed, as all the feeds are available to everyone who knows the address.
Try the demo
Turtilla is an online service which allows you to search and filter content related to your interests. This content is captured from a large variety of sources. The generated results can be converted to an RSS feed containing a number of items, with each item representing a channel of interest.
BlogSieve is a free web-based tool that creates new feeds by filtering, merging and sorting existing feeds. The BlogSieve engine accepts virtually every (valid) feed format, processed results are then exported into any feed format you choose.
This service analyzes the content of web pages and RSS feeds and sends alerts if there are any differences. The wide range of options allows users to configure their watch-filters in an appropriate way to track only desired information. A detailed reporting system keeps information from every check and gives real-time picture for every change on the monitored resource. The service is free of charge and can be used without installing any software.