Photoshop expert Sid Vasandani of StyleMyPic has put together a fantastic, in-depth look at luminosity masks that could significantly speed up your photo editing workflow. If you don't understand luminosity or you've never used luminosity masks, this tutorial could legitimately change the way you make selections.
Want to improve your selection game in Photoshop? Here's an 8-minute video from PiXimperfect that points out some "secret" sliders in Adobe Photoshop that will help you to make fast and smooth selections.
Adobe is dedicated to updating Photoshop consistently, but those updates don't always go so well. A lot of people have rolled back their healing brush tool, and ever since Select and Mask replaced Refine Edge this summer, people have been complaining. Meanwhile, Nate Dodson over at Tutvid has been desperately trying to make this new tool work.