The Tulsa law firm of Feldman, Franden, Woodard, Farris & Boudreaux hosts the Retro Tulsa Internet Museum, featuring postcards from Tulsa's past. Some of the most interesting are postcards of long-gone small businesses, like Mann Brothers Grocery. (That same page has a photo of a tornado alarm.) I appreciate the firm for hosting these old postcards, but I have one complaint -- the scans are too low-res, and a lot of interesting detail can't be explored.
Here's a list of Tulsa streets that changed names between the 'teens and the '30s. (Cherry Street is notoriously absent. Was that really the name of 15th, or was that a bit of myth-making?) Clicking the button at the top of the page will let you look at similar lists for about 100 other cities.
I found the above two sites and much more from Linda Haas Davenport's website devoted to Tulsa County historical and genealogical topics. One of her latest additions is a tribute to Rockin' John Henry, a long-time fixture on the Tulsa airwaves who passed away last August.