My main musical influences are (in alphabetical order):

Although just about any good drummer makes a positive impact on my playing.

Neil Peart has had the single biggest impact on my playing of any drummer out there. His musicianship, his talent, and his lyrics are absolutely top-notch. (Here's some more Neil Peart gushing)

If you're looking for a magazine to read about percussion and drumming, I can think of no finer magazine than Modern Drummer magazine. They've been publishing for years, and have their finger on the pulse of percussion.