A natural language-based information organization and collaboration tool for a computer system is disclosed. The system includes an apparatus and method for processing text expressions in a computer system. The apparatus comprises a user input device for receiving an input text expression; a parser to identify the keyword in the input text expression, the parser including functions for linking the input text expression to the information object based on the keyword identified in the input text expression; and a user output device for displaying to the user the identity of the information object to which the input text expression was linked.