Richard Bliss recently blogged at Novell and on his personal blog with some great advice: don't click on e-cards from your friends, and think about asking them not to send them at all, since the risks of clicking on e-cards vastly outweigh the benefits. Here's another thought: real money spent on real cards, envelopes, and stamps shows that you've actually made an investment in reminding your friends and family of your regard for them. It's much better for your online security, too! (Of course, one could argue that it is less environmentally friendly, but you can find cards and envelopes made from recycled materials.)