Facebook has announced that it will soon upgrade Graph API v2.3 users to v2.4. The automatic upgrade will take place on July 10th as part of Facebook's 2 year deprecation cycle. Significant changes from v2.3 to v2.4 require pre-migration attention from developers to avoid app disruption.
Perhaps your most important online network of business contacts is now programmable. LinkedIn launched its API (our LinkedIn API profile), which allows developers to access a user's connections and anyone's profile data, in addition to several other features. Though some are saying "finally," it's clearly not too late for LinkedIn, who aims to be the professional networking platform.