A bit overdue as it was way too hard to find apps in Facebook, also highlighted in bold is the ability to block all those app requests.
Facebook recently launched App Center, offering a centralized place to find more than 600 Facebook and Facebook-related apps. Think of App Center as one part showcase for mobile apps (iPhone, Android) and third-party sites that use Facebook logins, and one part discovery hub for games and other features you can use inside Facebook.com (Timeline apps).
You can, for example, find apps for Android and iPhone devices that require or offer Facebook logins and have an alert sent directly to your mobile device to install the app. You can also use App Center to find games to play on Facebook.com, or apps to display on your Timeline. App Center also includes a section to easily accept or block all your game and app requests.
Learn more – PC World – Facebook Apps Center: Hands On