didn´t know <gordon pask>:

It was Gordon Pask who inspired the construction of an <information> management system that had all the components of modern Web browsers, but with the added good sense to provide an organising principle for the hyperlinks – something the World Wide Web still needs. Named after Pask's first implementation, this THOUGHTSTICKER system was built in 1985, some 10 years before the Web's acceptance.

background and a lot of theory: on conversation and conversation software.

In the 1970s, THOUGHTSTICKER was developed at Pask's laboratory as an extension of Pask's studies of the 1950s and 1960s in human learning and individual conceptual style. These studies culminated in a comprehensive approach to educational technology (the CASTE system) ...

The term THOUGHTSTICKER was coined by Pask to mark the maturation of a general approach to knowledge representation whose elements reflected cognitive structures.