Business card can be a great marketing tool if one prefers to use them for promoting SFI and TricpleClicks. I think the best way to promote SFI and TripleClicks is by adding your links in your business cards. Every affiliate upon sign-in to SFI and/or TripleClicks is given an link each. Looks something like this for SFI http://www.sfi4.com/YOURSFIID/FREE. Print this on your card, and distribute them and you are a promoting SFI and/or TripleClicks effectively.