If you're an Adobe Photoshop Lightroom user, you should check-out a great blog called lightroomkillertips.com Matt Kloskowski of Kelby Training posts a wealth of information, with a mixture of tips, videos and free presets. The blog has been running for a long time now, so there's loads of content to work through. You can also expect a lot of tips for Lightroom 3, now that it's on beta release.