Google Maps has taken a page from MSN's Virtual Earth and added a "Street View" layer. This time, however, they have added the Golden Google touch with a virtual view of the street. Amazon tried something like this about a year ago and I haven't heard about it since. MSN tried car views in select cities and has bird-eye views that allow for closer views. Neither has a virtual picture that allows the view to tilt and zoom.
Check out the Street View in the map of New York City. Zoom in while on the Street View layer and it will tell you to click or move the person-icon to a blue colored street where the view pops up. It allows you to move down the street, zoom, and look around left or right.