Foursquare - Foursquare is all about helping you find new ways to explore your city.
Smith - A microcontainer builder (by Oracle)
Tripadvisor - The Tripadvisor mobile app is available for the Android and iOS platforms. It can be used to create reviews of hotels, restaurants, and to chat with other travelers on Tripadvisor forums.
Consumers’ Checkbook - Delaware Valley Consumers' Checkbook - Your Unbiased Non-Profit Service Ratings Authority
Yellow Pages - YP.com local search connects you with over 19 million local businesses.
Needto.com - NeedTo.com is changing the way people find help.