advertising services, namely, placing and preparing advertisements for others on the Internet and other computer networks for promotional purposes; providing on-line directory information services for others also featuring hyperlinks to other web sites on the Internet and other computer networks; electronic catalog services for others featuring a wide variety of consumer goods and services of others on the Internet and other computer networks; on-line ordering services for others featuring a wide variety of consumer goods and services for others on the Internet and other computer networks; billing services for others; data processing services for others