permission | Social Signal

You're at a business event, meet someone, talk, and exchange business cards. A few days later, you discover they've subscribed you to their email newsletter. Is that legit... or is it spam?

Chris Brogan recently posted about his online business card... and about one of the reasons he's giving up on the paper kind: "Every time I give someone a business card, I have about a 70% chance of receiving someone else’s dumb email newsletter that I didn’t opt into receiving."