Josh Parnham - Software Developer and organiser
iOS Jetpack - Beautiful easy-to-use screenshot templates for App Store
Yoink - Yoink is a website that makes it easier to drag and drop images and text from one screen to another. It's a straightforward site with help along the way if you aren't sure about dragging and how to place your content.
App Screenshot Maker - Design marketing screenshots for your app in minutes
ScreenFloat - Harness the power of screenshots to be more productive
Screenshot Designer - Create engaging App Store screenshots