These are unpublished talks. Look under papers for published material. All of these are either PDF (use Adobe Reader (Acrobat) or Ghostview) or PPT (use Microsoft Powerpoint or Star Office). With a decent browser configuration, you should just be able to click on these and have them appear in your browser window....
Christopher Manning. 2007. Learning Language from Distributional Evidence. Talk given at the MIT Workshop on Where Does Syntax Come From?, Oct 2007.
Christopher Manning. 2006. Robust Local Textual Inference. Talk given at Northwestern University, the University of Chicago, and Stanford University, 2006.
Christopher Manning and Dan Klein, Roger Levy. Natural Language Parsing: Graphs, the A* Algorithm, and Modularity. Talk at University of Toronto, Fall 2003. [Earlier version presented at UC Berkeley CIS Seminar, Johns Hopkins CSLP Seminar, and at Google, Fall 2002.]
Christopher Manning. Opportunities in Natural Language Processing. A general talk on NLP, originally presented at Oracle Corp.
Christopher Manning. Information Pragmatics. Talk at the CSLI Industrial Affiliates Program, 10 November 2000. [Earlier version presented at the Stanford Database Seminar, 29 September 2000.]
Christopher Manning. Probabilistic Models in Computational Linguistics. Talk at the IMA workshop on Mathematical Foundations of Natural Language Modeling, 31 October 2000.
Christopher Manning. Frequencies and Probabilities within the Grammars of Natural Languages. Invited presentation at the Symposium on Mathematical Statistics in Natural Language Analysis at the AAAS 2001 Annual Meeting, San Francisco, 16 February 2001.
Christopher Manning. Linguistics in an age of engineering. A talk on teaching computational linguistics inside linguistics departments, presented at a workshop on computational linguistics within linguistics departments at the LSA Annual Meeting, January 2000.