Cody Barbierri is a contributing writer at VentureBeat and Social Media Manager at Piehead. (None of his posts are about clients or their competitors.) Reach him at cody@venturebeat.com (tips should always be sent to tips@venturebeat.com), or on Twitter at @codybarbierri.

stories by Cody Barbierri

Shopkick: Our users are checking into deals

Shopkick, a check-in application which lets retailers market offers to consumers, is showing some impressive growth numbers, according to Business Insider. Since its launch in August 2010, the company has attracted 750,000 users and is doing 1 million check ins …

Foursquare grew 3400% in 2010


Popular mobile check-in application Foursquare today announced that it grew 3400% in 2010. The company now stands at 6 million users.

Other interesting stats include more than 381 million total check-ins accounting for every country (including North Korea) as well …

Filmaster looks to be "Foursquare for films"

Filmaster, a recommendation engine for movies and shows, announced today that it’s launching an application programming interface, or API, for developers looking to use the service’s data and algorithms in their own applications or websites.

Through the API, the company …

Twitter: Make that almost San Francisco

Twitter, the popular messaging site, may be growing out of its startup phase with a possible headquarters move to Brisbane, California, according to brokerage sources in the San Francisco Business Times.

The company appears to have more than 175 million …

Foursquare fights fake friends

Popular check-in application Foursquare is facing a problem that has long bedeviled social networks — spurious friend requests. And it’s dealing with violators by putting a cap on them.

Users now have a limit on the total number of friends …

What can we expect from Foursquare's new app?

According to a recent Foursquare post on Twitter, the company just had the next version of its iPhone application approved by Apple. (The post thanked “SantaJobs,” apparently a reference to Apple cofounder and CEO Steve Jobs.)

Foursquare cofounders Dennis Crowley …