Here Technologies has announced a beta of its new location data management cloud service: Here XYZ. XYZ is an open, community driven project that allows contributors to upload, manage, and display location data in a simple, and scalable manner. The service includes APIs and SDKs.
Gowalla, Foursquare, Yelp, Facebook Places, the list goes on. There's certainly no shortage of methods to tell people where you are and what you're doing while you're there. Startup Whatser, built on the SoGeo API for location-based apps, has jumped into the ring with a different approach to check-in services: to be useful.