The Agile Alliance homepageis the best starting point for anyone interested in learning more about agile software development.
Here's a collection of agile project planning tips of mine.
In "Managers Manage" I overview the Scrum methodology, an agile approach to project management.
The Eclipse Process Framework (EPF) and Open UP can be downloaded from the Eclipse Foundation.
The Agile Unified Process (AUP)can be downloaded from my site.
The Agile Models Distilled page provides links to overviews of a wide variety of models.
The principles of Agile Modeling v2 are now available.
The practices of Agile Modeling v2 are also available.
Check out the Agile Modeling mailing list.
Get agile modeling training resources here.