This startup is bringing ads into augmented reality. Too soon?

Cachetown is a mobile app technology that uses your smartphone's camera to turn the world into a video game via augmented reality -- with lots of advertising potential for brands.

Facebook buys location service Gowalla

Facebook has acquired the location-sharing service Gowalla for an undisclosed sum, according to a report.

Facebook and Gowalla have not confirmed the deal yet, which was reported by CNNMoney, citing an unnamed source. According to the story, founder Josh Williams …

Clingle takes on Foursquare and Google Huddles with new iPhone app

Clingle is a new location-based social network that wants to enhance conversations as you check in to places throughout the day.

The service, which officially launched across the U.S. yesterday with a new iPhone app, allows people to leave multimedia …

Foursquare Radar on iOS5 automatically finds cool things to do

Location-based check-in service Foursquare released a new version of its iPhone app today that adds a new feature called Radar, which takes full advantage of the latest version of Apple’s iOS 5 update.

Using iOS 5′s new region monitoring functionality, …

Foursquare revises checking-in at home addresses (again)

Location-based check-in service Foursquare today revised how it handles people who choose to check-in at their home or other personal addresses (say, grandma’s house).

The revision enhances the privacy of Foursquare users who want to share their locations at all …

Foursquare celebrates one billion check-ins with updated mobile apps

You know what’s cooler than a million check-ins? A billion. Popular location-based check-in location service Foursquare today announced on its blog that it has reached one billion check-ins, as well as launched updated versions of its popular iPhone and …

Gowalla’s next location check-in app features city guides

Location-based check-in company Gowalla unveiled the next version of its mobile application today, which features guides that include more in-depth information about locations.

For example, users can see guides to locations such as Disneyland or the University of Texas, which …

Finally: Foursquare lets you check in to movies, sports games and concerts

Location-based social network Foursquare now allows its users to check in at specific events, the company announced today on its blog.

The new check-in feature means time-specific events such as movies, concerts and sports games will all be treated the …

Check-in cha-ching: Foursquare raises $50M with a $600M valuation

Location-based social network Foursquare closed a new $50 million round of funding, the company reported today.

Foursquare said it will use the new funding to hire additional engineers, grow its merchant platform and expand internationally.

“The opportunity to build something …

Foursquare celebrates over 10 million users

Location-based check-in leader Foursquare has just announced it now has over 10 million users around the world.

To accompany the milestone, the company has created an interactive map that shows a series of colorful dots that slowly spread around the …

Game check-in app Heyzap lands on iPhone

Heyzap, an online network that lets gamers “check in” to games, has finally launched an app for the iPhone.

Heyzap is a little unusual because it’s a popular check-in application for games that first launched on Android devices before making …

NBA to launch Turnstile check-in app for games

The National Basketball League (NBA) may be looking to take advantage of the growing popularity of consumers checking-in to locations through its own application dubbed Turnstile, according to the Wall Street Journal.

The new application is supposed to be released …