A photographer on Flickr named Lee Bey who goes by ChicagoEye now has this great website at LeeBey.com. His niche seems to be architecture and he's taken pictures of plenty of buildings. Check out his essay about Rebuilding the 'Hood. This essay talks more about the redevelopment of the lakefront Oakland neighborhood but also the gentrification taking place around the city in neighborhoods such as Englewood, North Lawndale, West and East Garfield Park.
Gentrification interests me to be honest. It just shows that nothing ever stays the same. What was once a bad neighborhood can become a better neighborhood or at least a prized place to live in no time. One can either be a part of the change or be forced out against your will.