Listed below are my posts on the novels of Matthew Reilly, including the plans for various spin-offs.*
Coming Soon: Matthew Reilly's The Tournament
New Review: Scarecrow Returns, by Matthew Reilly
New and Noteworthy (Pyramid Closure, Jack West TV series?, New Scarecrow Novel)
Review: Matthew Reilly's Jack West Trilogy: Seven Deadly Wonders, The Six Sacred Stones, The Five Greatest Warriors.
* Also see "Science Fiction and the Post-Cold War" and "The Rise and Decline of the Military Techno-thriller," which appeared in the Internet Review of Science Fiction in its January 2009 and November 2009 editions respectively.