Mozilla

Firefox 4 web browser
Supports Direct2d hardware acceleration which helps display graphic content more quickly,if you have a graphic card and your operating system is windows vista or windows 7.
If the browser crashes,simply press the refresh button.
A sync feature lets you access your firefox `account' from any computer in the world with a password.
HTML5 installed on this version allows you to see video without flash.
It can automatically take you to https sites if you type in a non-https web addresse.
One possible  add-on to f4 is textarea cache which will recover text you have written if the system collapses.
http://mozillalabs.com/weave
copies bookmarks between firefox installed on different computer.
www.mozilla.com/thunderbird
thunderbird 3 is an email programme
Search Amazon.com for mozilla firefox

Search Amazon.com for mozilla firefox introductory concepts and techniques

Search Amazon.com for mozilla thunderbird

Weather-related software

http://earthalerts.manyjourneys.com/
gives real-time warnings about floods,thunderstorms,tornadoes,hurricanes and more(snow?,of which there is a lot in england at this time,I can see plenty outside my flat)
Alerts appear in your system tray.

file size;2.7MB

http://repkasoft.com/
Displays a picture that changes according to the time and weather.
gives a three-day forecast.

www.ravib.com/wm
gives you instant access to current weather details and forecasts for your chosen locality/ies.
updates every half hour.