Hi and welcome. My name is Xavier Roy and Paper Arrow is my blog on user experience and user assistance.
When I wanted a name for the site that was about documentation and user experience, I thought of PaperArrow where paper would stand for the documentation (manuals) and arrow serves as a reference or signpost for help. Relating to the user experience side of business, the references are wireframes and prototyping for paper and task flows, user journeys, and flowcharts for arrow. And the domain name was available, which clinched the deal for me. :)