Computerized networking matchmaking services offering professional contact information for buyers or licensees and sellers or licensors to buy or license domain names and/or intellectual property with each other using proprietary on-line searchable database software. On-line retail store services offering for sale such materials as books, audio cassettes, video cassettes and discs and video cassettes featuring licensing and marketing information. Registration, transcription, compilation and systematization of information and data concerning domain names and intellectual properties owned and of helpful licensing and marketing information. Enabling people access directories to conveniently view names and addresses, personal and professional contact information, and business information originated by in-house proprietary searchable database sources facilitating people to transact business among themselves