Facebook has launched a new suite of marketing APIs and taken its Facebook Ads API out of private beta. The suite gives developers, ad agencies, and marketers programmatic access to pages, advertising, and analytics for their social media marketing campaigns. In addition to the Ads API, the suite includes the Insights API for building social analytics tools, and Pages API for building and accessing pages and their fields, connections, events, links, notes, photos, and videos. Both are officially part of the Facebook Graph API.
Check-in app Gowalla puts a fun twist on location sharing by helping its users discover wonderfully-designed virtual items that can be found, swapped, and dropped all over the place. Developer Ben Dodson used the Gowalla API to put together Wallabee Travel Edition.
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.