Getting business cards from interested prospects can focus your follow-up efforts after the program. Creating residual exposure. Even if a group may not have an opening to hear your talk, they may still be interested in your subject. Volunteer to write an article for their newsletter or bulletin in exchange for your contact information printed at the end. Interest generated through an article can result in a future speaking engagement or increased interest for your program later in the year.
Articles also make great additions to promotional materials.
Speaking begets more speaking. Professional speakers know that audiences consist of members of many organizations and that referrals from the audience are a natural way to get more talks. Make sure your introduction highlights your speaking. A story or two about your speaking to other groups is O.K. too, as long as the story illustrates one of your key points. Working with me won't hurt.