[Discover] ESWC 2007 Tutorial: SPARQL - Where are we? Current state, theory and practice http://axel.deri.ie/~axepol/sparqltutorial/
(sparql semanticweb slides tutorial) 
[Discover] Berners-Lee - 2006/03/02 Browsable data (1) http://www.w3.org/2006/Talks/0302-browsedata-tbl/ (webarchitecture slides sembrowse tbl)
[Discover] Presentation Zen: "Slideuments" and the catch-22 for conference speakers http://presentationzen.blogs.com/presentationzen/2006/04/slideuments_and.html (presentation slideuments slides)
[Discover] SPARQL Algebra http://axel.deri.ie/~axepol/sparqltutorial/ESWC2007_SPARQL_Tutorial_unit2b.pdf (sparqlalgebra slides sparql)
[Discover] The Linking Open Data Project http://linkeddata.org/slides/2008-02-amsterdam-catch.pdf (tomheath presentation linkeddata slides)
[Discover] Berners-Lee - 2006/03/02 Browsable data (1) http://www.w3.org/2006/Talks/0302-browsedata-tbl/ (webarchitecture slides sembrowse tbl)
[Discover] Presentation Zen: "Slideuments" and the catch-22 for conference speakers http://presentationzen.blogs.com/presentationzen/2006/04/slideuments_and.html (presentation slideuments slides)
[Discover] SPARQL Algebra http://axel.deri.ie/~axepol/sparqltutorial/ESWC2007_SPARQL_Tutorial_unit2b.pdf (sparqlalgebra slides sparql)
[Discover] The Linking Open Data Project http://linkeddata.org/slides/2008-02-amsterdam-catch.pdf (tomheath presentation linkeddata slides)