Try not to screenshot too much of the black borders, it messes up the next step. 3. Get Autostitch and select your screenshots. It'll output one large image called pano.jpg. 4. Post for karma!
ShareX is a really useful free tool that sits in your system tray and gives you hotkeys that take a screenshot, upload it and copy the URL to your clipboard so you just need to paste it. Can do full desktop, current window or selectable region, and you can edit the image (such as adding a box to highlight something or adding text) during the process. What it looks like, though after setup all you need to remember is the hotkeys for screenshotting.
Lets you choose where to upload like imgur, onedrive, gfycat etc. End up using it for so many things once you have it.
try http://puush.me/
An application that sits in your systray. Ctrl-Shift-2/3/4 to capture window/desktop/region, which is automatically uploaded and the link to it copied to your clipboard. If you register a free account you can manage all the images you've uploaded. Really convenient for sharing images. Can also right click a file and puuush it, uploading it to share easily too.