For those who are going to use Maven, just for the hype surrounding this project or for real need: the Definitive Guide book, published by the great guys of O'Reilly, is also available on line free of charge at the Sonatype web site.
If you are interested, go and visit the Maven: The Definitive Guide page and download the PDF edition or directly browse the on-line version.
UPDATE: The Definitive Guide is not available anymore but on the Sonatype web site there are two other free books on Maven, Maven by Example and Maven: The Complete Reference.
