Rod Johnson, Juergen Hoeller: Expert One-on-One J2EE Development without EJB, 2004. Wrox Press. ISBN:?0764558315. Book presentation on Wrox.
Justin Gehtland, Bruce A. Tate: Better, Faster, Lighter Java, 2004. O'Reilly. ISBN:?0-596-00676-4. Read the book online (Safari).
Steven Weber: The Success of Open Source, 2004. Harvard U.P. ISBN:?0674012925. Book presentation on Harvard U.P.