Google Maps and Chevanston. (Google maps doesnt acknowledge existence of Chicago west of Howard)

                     Mapquest atleast works for all Chevanston addresses. Google Maps is accurate for Howard addresses east of the EL tracks, but is confused by the Howard addresses for Chicago west of the tracks.1637 w Howard is the highest numbered address east of the Howard EL Stop, yet if you type in 1700/1800/1900/2000 etc. it will show the Paulina and Howard intersection as the location. Yahoo maps is even worse than Google Maps and is even less predictable with its output. The Evanston side of Howard atleast can be mapped without problems
with Google Maps

North of Howard ain't all bad.