The invention concerns a method and system for enabling collaborative document markup. Employing the invention involves the use of one or more forms which support interaction with a computer system or network. Each form is printed on sheet material such as paper and includes coded data which allows it to be used to interact with the computer system via a sensing device operated by a user.Specifically, the method includes the steps of providing a participant with at least one document markup form containing information relating to a collaborative document markup session and including coded data indicative of an identity of the document markup form and of at least one reference point of the document markup form, receiving, in a computer system, indicating data from a sensing device operated by said participant involved in the document markup session, said indicating data regarding the identity of the document markup form and a position of the sensing device relative to the document markup form, the sensing device, when placed in an operative position relative to the document markup form, sensing the indicating data using at least some of the coded data, identifying in the computer system and from the indicating data, at least one parameter relating to the document markup session, and providing at least one other participant remote from said participant with at least one document markup form containing information representative of the at least one parameter.The invention can be employed by geographically distributed participants to mark up a shared document using interactive surface media, while engaged in a telephone conference or similar. Every time a participant adds a markup to the document the other participants can be provided with a printed copy of the updated page.