Note: This post will be updated often with new links & resources. Hence visit it often!

General Software Quality:
http://www.softwareqatest.com/

Software Process:
www.cs.st-andrews.ac.uk/~ifs/Books/SE7/Presentations/PPT/ch4.ppt

Agile:
Agile Leadership Wiki Of Knowledge
http://agilemanifesto.org/
http://www.agilealliance.org/articles
http://www.agile-software-development.com/
http://www.agilemanagement.net/index.html

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~ Vijay