Coffee Shop Wars: Quantity of Writing Produced (part 1)

It is well known that coffee shops attract writers. But what coffee shop produces the most writing?

Starbucks, 2 points:

1. Recently it came to light that Diablo Cody, Academy Award winner for Best Original Screenplay, wrote her winning script "Juno" in a Starbucks inside a Target (From seattlepi.com)

2. Margaret Seltzer, just came out with a "non-fiction memoir" about child abuse, drug dealing, and and everything else, under the name Margaret B. Jones. But her book was recently exposed to be a completely fictional story that she wrote “at the Starbucks in South-Central [LA]". (From turtletalk.wordpress.com)

This Coffee Shop War is not delving into the quality of the literary work (that can be looked into after we start getting some sense of quantity), so it appears that Starbucks is off to an early lead.

To Be Continued...