puush is a program and web service at the same time that allows you to take screenshots and upload them to the Internet. It is also possible to upload any files to the Internet.
puush does not have an interface, as such, all the functionality is available from the icon in the system tray (next to the clock) or through key combinations. The user can take a snapshot of the entire screen, the active window, or any selected area of the screen. In order to use this or that function you should right-click on the icon and select the corresponding item. If you prefer hotkeys, they can be set to your liking, but by default they are:
Ctrl + Shift + 2 - snapshot of the current active window;
Ctrl + Shift + 3 - snapshot of the entire screen;
Ctrl + Shift + 4 - snapshot of the selected area;
Ctrl + Shift + 5 - upload any file to your account at http://puush.me/.
By the way, before using puush you need to create an account on the specified site and login through the program. Registration is fast, but you need to confirm your account by email.
The disadvantage of the program, apparently, is that it does not provide an opportunity to insert the received images into the graphic editor and save the file locally. Saving a screenshot to the clipboard would be a good addition.