Foursquare - Foursquare is all about helping you find new ways to explore your city.
gpx.studio - View, create, edit and combine GPX files online to correct your activity data or design new awesome routes.
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.
GPX Editor - Load, modify and save your GPX 1.1 files.
Yellow Pages - YP.com local search connects you with over 19 million local businesses.
GPS Track Editor - GPS Track Editor: Free Windows Application to Make GPS Tracks Better.