A salon is a gathering of stimulating people of quality under the roof of an inspiring hostess or host, partly to amuse one another and partly to refine their taste and increase their knowledge through conversation and readings, often consciously following Horace’s definition of the aims of poetry, “to please and educate” (“aut delectare aut prodesse est“).
From Wikipedia. Most notable in the 17th and 18th centuries in France, the salon was an important place for the exchange of ideas.
This painting is called In the Salon of Madame Geoffrin in 1755, by Anicet-Charles-Gabriel Lemmonier:
Blogs are a bit of a modern salon, I think. So, I wonder, if you were to attend the salon, what would you care to discuss? What books or ideas would you want to explore?