Here's the scoop. inSPOT (Internet Notification Process for Partners or Tricks) has set up a website so people can tell people anonymously that they have been exposed to an STI and that the person receiving the card should get themselves checked.
Do you see the problem with this? How many people would think it's funny to just send one out to one of their friends? A lot. Well, here's the site anyway, the e-cards are kinda creative considering.
http://www.inspot.org/Home.aspx?regionid=44&sitelvl=1 EDIT: I realized that even if people freak out it's not such a bad thing. It'll just lead to more people getting checked and possibly finding something they didn't actually know they had.