Links
Art Biennials - Worlds top 20 biennials and triennials
Art Cyclopedia - Art museums worldwide
Art Fairs - Art Fairs calendar up to date
Artist-info - 522200 shows in 1400 cities in 163 countries
Art Museums - List of art museums (Wikipedia)
Artsy - Art collections, gallery worldwide
Louisiana DK - A three star artmuseum, always worth a visit