Here is an interesting use of Tumblr by our local newspaper – The Digs. The Pittsburgh Post-Gazette has set up a Tumblr blog to share photos from their archives. The Digs offers a fascinating look into Pittsburgh of the past. The Post-Gazette has an amazing archive of photos. One of my favorite books that sat on the coffee table at my parents house for years is Days of Sweet Remembrance which is a collection of photographs of Pittsburgh from the Post-Gazette.
The Digs does a nice job of showing off some of the photos and providing some background and contexts for the photos.
Worth a look: Check out this recent post on The Digs about the Skinny Building.