With MonitorThis you can subscribe to 22 different search engine feeds at the same time. Enter a search term and click the 'make monitor.opml' button to get a list of rss feeds in OPML format. RSS feeds of the following search engines are currently includ
Tracks is a web-based application to help you implement David Allen’s Getting Things Done™ methodology. It was built using Ruby on Rails, and comes with a built-in webserver (WEBrick), so that you can run it on your own computer if you like. It can be run on any platform on which Ruby can be installed, including Mac OS X, Windows XP and Linux. Tracks is Open Source, free and licensed under the GNU GPL.
Foswiki is a wiki, so you and your team members can collaborate and edit pages directly in the web browser. For advanced collaboration, Foswiki lets you enter macros (similar to Excel) to automate pages and build entire applications from within your browser.
powerful and easy to use web-based calendar that runs on PHP and MySQL. A free version is available for use and is under constant development to improve its user interface and features.