ThinkUp -- the free, open source web application that captures your posts, tweets and other data on social networks like Twitter and Facebook -- has added support for Google Plus. Thanks to the the newly-released Google Plus API, ThinkUp now lets you download all of your social data from the major social networks.
Every day Foursquare users create millions of check-ins using the location-sharing platform. Those may be only a small fraction of the traffic seen by its API, which we've estimated receives at least 5 billion requests per month. The company continues to expand the local data made available via its API, so developers of all sorts are finding it a rich resource for building their apps.