Great map site, though I wish they would update their street view pictures more frequently. Some of the buildings they show are either not there anymore or in a more...rustic state. If you want directions, I would stick to Mapquest though.
Very useful. I heard and checked a lot of stories to see whether or not they were true, but there is often something cool to be found at certain spots that could only be seen from an aerial view. Very interesting at times.
Imo, beats the other two competitors, Yahoo Maps and Mapquest. Directions for on foot, bicycle, cars, and public transit. Very versatile and very detailed. They do have the advantage of having their pretty fine tuned, multi-billion dollar search engine enhance the maps.