Software tutorials and help
Here you can find some introductory help for different software, but also tips for dealing with some issues associated with specific bits of software.
Software tutorials
Command Prompt
Windows Explorer
JDK (for home only)
Notepad++
Firefox/Chrome
Internet Explorer
Other info
Arc
Things we've learnt from programming Arc with Java
Eclipse
Managing Projects in Eclipse
Installing the ESRI Eclipse plugin for ArcGIS 10
Installing the ESRI Eclipse plugin for ArcGIS 9
R