Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
Transferslot - Easily buy and sell side-projects
Shutter - Shutter is a feature-rich screenshot program.
SaaSPlace - Acquire, invest & sell SaaS products, plugins and apps
Snipping Tool - Use Snipping Tool to capture a screen shot, or snip, of any object on your screen, and then annotate, save, or share the image
SideProjectors - Marketplace to buy and sell side projects