Foursquare - Foursquare is all about helping you find new ways to explore your city.
Raindrop.io - All your articles, photos, video & content from web & apps in one place.
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.
Linker - Cloud based bookmark manager
Yellow Pages - YP.com local search connects you with over 19 million local businesses.
Bookmark OS - Bookmark OS is like Mac or Windows optimized for bookmarks.