Wikipedia
Arenapal
ArenaPAL is a UK company, based in Central London, which specialises in the licensing of performing arts images, both in the UK and throughout the world. Its collection falls under the main categories of opera, theatre, classical and contemporary music, classical and contemporary dance, as well as educational imagery covering all categories. It has a library of 3 million images with over 350,000 currently view-able online. The library also holds thousands of unscanned prints, negatives and transparencies. These are digitised as part of its on-site archival scanning project. It is currently the largest specialist image library of its kind in the world.