I had not heard about "about.me"; checking it out, thanks. I actually haven't received a business card with any social network on it, so it's good to hear that

I had not heard about "about.me"; checking it out, thanks. I actually haven't received a business card with any social network on it, so it's good to hear that some people do promote their linked in profile on their card. Would you be more compelled to have this.vc/ljf on your card if it aggregated all your social network data into one cohesive, easy to use interface? What do you think about QRcodes; would you, for example, use that to post on a bulletin board at a convention?