A text indexing system for collecting business intelligence about a client, as well as for identifying prospective customers of the client, for use in a lead generation system accessible by the client via the Internet. The text indexing system has various components, including a data acquisition process that extracts textual data from various Internet sources, a database for storing the extracted data, a text indexing server that executes keyword searches of the database, and an output repository. A web server provides client access to the repository, and to the indexing server.