Since it debuted in beta form at Macworld Expo in 2007, Skitch has become a favorite Mac utility for many, many people. It's great at grabbing screenshots, adding annotations and notes, and sharing them on Skitch.com, Flickr, Mobile.me or even your own server.
We've waited three years for a 1.0 release while the beta kinks got worked out, and now the wait is over. Skitch has burst out of beta with a ton of new features and an entirely revamped web app geared toward social image sharing. It's aiming to be the Flickr of screenshots, with a full-featured desktop app to back that up.
Most of the features that have made Skitch so popular are still free, including screen capture, image editing and annotation, and online sharing of images. If you want to go "Plus," you'll pay a yearly subscription fee of $14.95 (that's a discount right now; it will go up to $19.95 soon). The Plus subscription adds a range of new features, from the ability to grab full-length web page captures to additional editing capabilities. It will also remove ads from the online experience and provide more storage and options.
One of the best features in the Plus package, in my opinion, is automatic copy of direct image links after upload. Yes, you can get that for free using something like Droplr or CloudApp, but when combined with all of the other features, it adds some value to the subscription price.