There are extensive details about artists, groups and organisations on the web. Here are ones dealing with aspects of holography, art and creative resources.
www.L3xicon.com An unusual web thesaurus and lexicon which is attempting to produce an index of topics and related areas on the Internet. www.apepper.com is archived under Holography, Light Art and Art
www.kwmap.net Similar to the L3xicon site (above) but providing a visual display of associated words.