"Take screenshots, save them, edit them, export them, send them to a server, etc."
It is always great news to hear that a screenshot program as good and complete as Light Shot is totally free.
As you may or may not have been able to guess just from the name of this program, with Light Shot you can take screenshots of any element on the screen. Its use is also very intuitive. The whole screen is made darker, then the area you want to capture is made lighter. To start using it you just press the Print Screen button.
Apart from taking screenshots, Light Shot also lets you share them over the Internet. You can send them via the program to the web server you indicate. It also has its own editor to edit your images. You can also copy them to the clipboard, export them to other graphic applications, save them in your hard drive, configure your own key combinations to make everything quicker, etc.