Method and system for presenting on-line “Yellow Pages” particularly in association with location data

A program storage device readable by machine, tangibly embodying a program of instructions executable by the machine to perform method steps for doing business, including the following steps:

• (a) maintaining a commercial subscriber database including a plurality of records each containing data relating to commercial subscribers including at least name, address and category,
• (b) receiving from a client machine connected thereto a request to download data relating to at least one specified category of commercial subscriber,
• (c) extracting from the commercial subscriber database respective records and downloading to the client machine for display thereby,
• (d) allowing receipt of an update from one or more commercial subscribers in respect of substitute or supplementary data to that containing in the respective database record of said one or more commercial subscribers,
• (e) updating said commercial subscriber database as required,
• (f) checking whether a client machine is on-line and has extracted data from the respective database record of said one or more commercial subscribers, and if so
• (g) downloading to the client machine the update in respect of each of said one or more commercial subscribers for display on the client machine.

A computer program product comprising a computer useable medium having computer readable program code embodied therein computer readable program code for causing the computer to perform a method for doing business, including the following steps:

• computer readable program code for causing the computer to maintain a database including a plurality of records each containing data relating to commercial subscribers including at least name, address and category,
• computer readable program code for causing the computer to receive from a client machine connected thereto a request to download data relating to at least one specified category of commercial subscriber,
• computer readable program code for causing the computer to extract from the database respective records and downloading to the client machine for display thereby,
• computer readable program code for causing the computer to allow receipt of an update from one or more commercial subscribers in respect of substitute or supplementary data to that contained in the respective database record of said one or more commercial subscribers,
• computer readable program code for causing the computer to update said database as required,
• computer readable program code for causing the computer to check whether a client machine is on-line and has extracted data from the respective database record of said one or more commercial subscribers, and
• computer readable program code responsive to the client machine being on-line and having extracted data from the respective database record of said one or more commercial subscribers for causing the computer to download to the client machine the update in respect of each of said one or more commercial subscribers for display on the client machine.