HGTV's Front Door
The HGTV website has a real-estate search engine for the USA. The site also includes a large number of city guides. Each city guide includes an 'Explore' section that features a Google Map with a huge amount of local information for home buyers.
The local information is in a number of selectable categories, including education, entertainment, food, recreation etc. Each of the categories are subdivided, for example under food it is possible to select cafes, fast food, grocery stores and restaurants.
If you are a house buyer looking to find out about the amenities in a new neighbourhood then the HGTV Frontdoor Map should prove extremely useful.