New York City Drink Deals - Mapping specials for beer, liquor, wine and food in NYC.
MapHistory - Historical Google Map for the city of Philadelphia.
New York City ZipCars - Map Zipcars (urban time-slotted rental cars). Maps also available for Boston, Washington D.C., NYC and San Francisco
Chicago Real Estate search - over 90,000 MLS listings (when logged in) and also includes Yellow Pages listings as well.
Parks in the San Francisco Bay Area - Livingcue.com is a new Google Maps-based community site. So far it contains listings to parks in the Bay Area.
Hotels from the strip in Las Vegas - Provides locations, information and photos about the hotels that are dotted along "The Strip" in Las Vegas. (Had some difficulties with the info-balloons in Firefox 1.0.7)
US Urinals - You read it right. Find out more about the urinal you're about to visit.
Hang Gliding Flight Parks - Park listings for the U.S.
Detroit Women's Lifestyle locations - Includes mapped women's lifestyle locations for Metro Detroit (Click on FAQ, then View Locations Map).