Spraci

Nightlife, clubs, gigs, festivals, arts, public events listings for many cities worldwide.
Spraci

Ning

Ning is a platform for creating social networks. The Ning REST API integrates with any Ning Pro account to import, export, and share data from apps running on Ning across the web or onto your desktop. Manage users, blog posts, photos, comments and other elements of your Ning Network. The company also has an API that supports the OpenSocial standard.
Ning

Plazes

Plazes is a location aware social network and search application. With Plazes, users can share their location with those people they want to know their location, while keeping their location private from those they don't. Users can also use Plazes to see what is happening near them and who is near them. The Plazes API allows developers to access and integrate the functionality and data of Plazes with other applications. Some example API methods include retrieving locations, accessing location categories, and retrieving user activities.
Plazes