If you're looking for a simple way to share your virtual life in a compact package, JumpScan packs a miniature profile into a QR code; easily share contact information and links to social networks with a simple smartphone scan.
When you sign up for a JumpScan account you plug in your name, email address, web site, a small bio, and phone number, as well as your Facebook, Flickr and Twitter account names (you can input as much or as little info as you want, and you don't have to supply all of the aforementioned information). Save the QR image and share it. Anyone who scans the QR code will be directed to your mobile-friendly profile page with your contact information and social networking links.
JumpScan is a free service and requires a simple web-based registration.