Yes I use business cards, as a member of a local business networking club we use them frequently and they work. We have weekly meetings in which we talk about various items and at the end we exchange cards (10-20 each) then through out the week when we are talking with clients if the issue arises in which they may need the services of one of the other members we pass on one of the cards. It works very nicely and has gotten our members alot of additional business.