Ring4 - Manage business phone line as easily as you manage emails, in the cloud. Ring4 provide you with a business line and video conferencing solution.
Foursquare - Foursquare is all about helping you find new ways to explore your city.
Burner - Disposable phone numbers -- now with MMS photo support
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.
quackr - Protect your privacy & identity with quackr. Use our free temporary phone numbers to receive SMS online now.
Yellow Pages - YP.com local search connects you with over 19 million local businesses.