Important announcements about the Foursquare API will be sent via email to the address associated with the Foursquare user that created the application. We recommend developers creating an application on behalf of a large company or corporation to not use their personal accounts, but to create a new Foursquare account with an email address that will hit multiple inboxes.

You can also follow us on the Twitter: @foursquareAPI

Developer Forum

We encourage developers to ask questions about the Foursquare API on Stack Overflow, especially ones that have to do with programming language-specific issues:

In addition to the Stack Overflow community, members of team Foursquare actively monitor the site and frequently answer posted questions.