managing and counseling individuals and entities in the fields of entertainment, sports, and arts; providing consulting and advertising services to individuals and entities in the fields of entertainment, sports, and arts; development and maintenance of internet websites for others in the fields of entertainment, sports, and arts; equipment leasing; and studio leasing; development of computer software used to access display, organize and print electronic databases; development and updating of interactive computer databases for others in the fields of entertainment, sports, and arts; equipment leasing; and studio leasing