This is one of my new favorites. BounceApp allows you to grab a screenshot from any page by typing in the URL. With a simple comments feature you can mark parts of the page. This is super handy for getting feedback from others or even fun if you found something hilarious you want to point out.
Time to familiarize yourself with the service: 10 seconds or less
Find out more: BounceApp
Time to familiarize yourself with the service: 10 seconds or less
Find out more: BounceApp