Computer service, namely, acting as an application service provider in the field of knowledge management to host computer application software for the collection, editing, organizing, modifying, book marking, transmission, storage and sharing of data and information; Computer services in the nature of customized web pages featuring user-defined information, personal profiles and information; Providing customized on-line web pages featuring user-defined information, which includes search engines and on-line web links to other web sites; Providing on-line non-downloadable software for management of trading card collections and managing on-line merchant sales and pre-sales and post-sales activities; Providing specific information as requested by customers via the Internet