This is a crowd-sourced interactive map of the area around Whitechapel, from Petticoat Lane (Middlesex Street) to the Royal London Hospital. Each outlined building is clickable. If you have images or information about individual buildings, they encourage you to contribute.
Thanks to londonist.com, where this came across this.
UPDATE: Oct 31, 2016. I submitted a few photos of a subway (underpass) and they have been added to the site. Its a little angled mark at the west end of Whitechapel Highstreet, on St. Boltoph Street.