ReadTheDocs - Spend your time on writing high quality documentation, not on the tools to make your documentation work.
Salad Room - Share text, links or files quickly between devices
Docsie - Docsie makes it easy to create and maintain your website documentation, without having to deploy it...
Envelop - Immersive virtual reality platform for the Windows desktop, use all your Windows apps in VR.
ReadMe - A collaborative developer hub for your API or code.
Zapsnap - Temporary peer to peer screenshot sharing in your browser