@Derek **********
this is mine
*************************************************
probably specific to my industry but I don't think I've ever encountered an established business that doesn't have letterheads, email signatures and a website. The only people in our business that need business cards are the field reps and if me or the others ever attend a networking event which is rare for us nowadays. In terms of the point of discussion, ide say overkill is always best. Show them a website, show them a LinkedIn profile and any testimonials you've had there, ensure any letters from employers are actual letters done in word with a letter head etc etc, all of these things show your telling the truth and didn't just mock something up to get the visa. I'm guessing business cards would work also however although their as easy to order off Vistaprint as it is to put a letterhead on an official letter