Evercontact - Your contacts always up to date and automatically with Evercontact.
Foursquare - Foursquare is all about helping you find new ways to explore your city.
CONTACTBOX - CONTACTBOX combines the simplicity of an address book with effective functions of a CRM system.
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.
Bigin by Zoho CRM - Pipeline-centric CRM built and priced for small businesses
Yellow Pages - YP.com local search connects you with over 19 million local businesses.