Books like Alex Rider
(another list courtesy of the brain trust of the YALSA listserv)
Tomorrow When the War Began (series) by John Marsden
Pendragon series (MacHale)
Cirque du Freak (series) by Shan
Ice Station by Matthew Reilly
Temple by Matthew Reilly
Scarecrow by Matthew Reilly
Where Eagles Dare by Alistair Maclean
Guns of Navarrone by Alistair Maclean
The Way to Dusty Death by Alistair Maclean
Rurouni Kenshin
Beet the Vandel Buster
Rebound
Initial D
Whistle
Prince of Tennis
Kindaichi Case Files
Case Closed
Ranma ½
Naruto
Artemis Fowl (series)
Fastback Beach
Tough Trails
Bull Rider
Red Midnight by Ben Mikaelsen
Deathwatch by Robb White
Acceleration by Graham McNamee
Fallen Angels by Walter Dean Myers
Tom Clancy Net Force
Robert Ludlum
Spy High by Butcher
Vampire High by Douglas Rees