Discourse and dialogue links:

Attention, intentions, and the structure of discourse (Grosz and Sidner, 1986)
Interpretation as Abduction (Hobbs et al. 1990)
A Plan Recognition Model for Clarification Subdialogues (Litman and Allen, 1984)
RST website RSTTool Daniel Marcu's website
essay scoring: ETS, LSA Intelligent Essay Assessor
dialogue architectures and modeling: DIPPER, TRINDIKIT, MIDIKI, Diamant