(author, Chapters 8 and 9, previous edition) is O'Reilly Media's Chief Technology Officer. He has co-authored various O'Reilly books, including Mac OS X Hacks, Google Hacks, Essential Blogging, and Peer to Peer: Harnessing the Power of Disruptive Technologies, and he's program chair for the O'Reilly Emerging Technology Conference. Email: firstname.lastname@example.org.
Tara Calishain is the creator of the site, ResearchBuzz. She is an expert on Internet search engines and how they can be used effectively in business situations.
DJ Adams is an old SAP hacker who still thinks JCL and S/370 assembler are pretty cool. In recent years he's been successfully combining open source software with R/3 to produce hybrid systems that show off the power of free software. He's the author of O'Reilly's Programming Jabber book, contributes articles to O'ReillyNet's P2P site, and has to own up to being responsible for the Jabber::Connection, Jabber::RPC and Jabber::Component::Proxy modules on CPAN.