You should include the name of your business along with a logo if you have one. Also, include the address of the business, your phone number, fax number, and e-mail address. Your Web page address should also be listed.
In addition to the information listed, you could include your hours or a small list of the services you offer. It is helpful to your customers if the name of your business helps to identify your business, i.e., ABC Day Care, DelaSeed, Chris' Jewelry, Smitty's Web Design.