The Echo Park Time Travel Mart is a store front that fronts as a store but is really a "non-profit organization dedicated to supporting students ages 6 to 18 with their creative and expository writing skills, and to helping teachers inspire their students to write." they offer "drop-in tutoring, after-school workshops, in-schools tutoring, help for English language learners, and assistance with student publications."
The recently opened 1714 Sunset Blvd. location is one of several around the country and was conceived by Dave Eggers. There is a story behind the idea of creating semi fictional stores such as San Francisco's Pirate Supply Store that you can look up online, but the important thing is that it's a great idea and cool art friendly space that the community can relate to and the local kids can benefit from.
Check it out and volunteer!