The latest issue of Servo magazine (September) is out and it has a lot of great stuff in it. I subscribe to both Robot and Servo and enjoy them both. Published by the venerable Nuts & Volts magazine, Servo skews a bit more towards the deeper geek,while Robot is geared more towards the casual hobbyist, kitmakers, etc.
The latest Servo has a cover story on upgrading the Lynxmotion Johnny 5 to make it a more reliable research platform, using the Parallax Propeller in robotics, Arduino resources for robots, and Part III of Heather Dewey-Hagborg’s series on artificial life. There’s also a section on combat robotics and a piece on making your own custom terminal blocks. Good stuff.
Servo is published monthly and is $24.95/yr.