While browsing the Forgotten Chicago flickr photo pool, I noticed that the wood block alley behind the Chicago Cardnials house has been paved. Here is the FC thread discussing wood block alleys.

http://forgottenchicago.com/articles/wood-block-alleys/

Here are links to "progress," Chicago style.

http://www.flickr.com/photos/mss2400/1017367248/in/photostream/

http://www.flickr.com/photos/chicagogeek/5739045392/

http://www.flickr.com/photos/chicagogeek/5772120399/in/pool-forgottenchicago/