Pinger is a simple monitoring service that performs basic testing of servers and websites, alerts you when there are problems and provides a web interface to statistical data.

In pratice, not only will it help keep down time to a minimum, it can be used to show off your awesome network management skills or even filter some of the unnecessary helpdesk tickets.

Requirements : IIS, Sql Server and .NET 3.5

Googsystray is a system tray app for Google Voice, GMail, Google Calendar, Google Reader, and Google Wave. The idea is to be able to keep track of all that stuff without having to keep a bunch of browser tabs open, or constantly checking them. It notifies on new messages, alerts, etc., and provides basic services quickly.

Googsystray will run on Win2k/XP/Vista/7/etc with no dependencies (self-installing executable), and any Linux distribution with Python and pygtk installed.

uClassify is a free web service where you can easily create your own text classifiers like spam filter, language detection etc.

You can use this web service for -
1. Spam filter
2. Web page categorization
3. Language detection
4. Written text gender recognition
5. Mood
6. Sentiment

Resources : There is a Classifier4J Java library designed to do text classification. It comes with an implementation of a Bayesian classifier including a text summary facility.