Local ham Garrett Dow KD6KPC has recently completed a new online repeater book. He was frustrated by the ARRL Repeater Book being out of date before it was even published.
This is a living document and he has recruited hams throughout the country to insure that the information is kept up to date. You can access it at www.repeaterbook.com. The site has many really cool features including an app for your phone or tablet. Registration is free and gives you access to even more features.