What is Jailbreaking?
How to Jailbreak an iPhone or iPod Touch.
Cydia (for firmware 2.x and above):
Installer (for firmware 1.1.4 and below):
What is Installer?
How to get Installer on your iPhone or iPod Touch.
How to Install an Application.
How to Add a Source to Installer.
How to Delete a Source from Installer.
How to Use the Queue in Installer.