I find Wikipedia a great data base giving information which no other encyclopedia would give.
I do my bit when somebody tries to mutilate (not edit) an article by, for instance, deleting whole paragraphs or links just because he/she does not like it.
In the Loge, also known as At the Opera, is an 1878 Impressionist painting by the American artist Mary Cassatt. The oil-on-canvas work depicts a bourgeois woman in a box at an opera house looking through her opera glasses, while a man in the background looks at her from a different box. The woman's costume and fan identify her upper-class status. Art historians see the painting as a commentary on the role of gender, looking, and power in the social spaces of the 19th century. The painting is now at the Museum of Fine Arts, Boston, which also holds a preliminary drawing for the work.Painting credit: Mary Cassatt