Write something profound enough, and people will keep it around for 500 years to come. They'll keep posting it, reprinting it, rehosting it, archiving it, and sometimes even memorizing it by heart.
No, you can setup a Canadian company, and subcontract as a consultant. The downside is your company is responsible for paying taxes (GST, EI, etc), in addition to your personal taxes. Also, obviously, the US company won't provide benefits.