University College London
University College London: Digital Egypt: Basketry
Click on materials, techniques, or function to see pictures of basket techniques from ancient Egypt. Very little commentary, but interesting pictures.
ArtLex
Art Lex: Mat, Matt, or Matte
This site from the ArtLex Art Dictionary contains definitions for "mat," "matt,", and "matte" as they apply to art. The last definition given in the bunch is the one for "matte."