Social business directory Yelp has launched in Turkey. Yelp.com.tr and the Yelp iPhone app are now live in Turkish.

Photos posted to Twitter via Instagram will no longer display as images.

The Windows Phone operating system has sold 4.2 million units since October.

Angry Birds, which first appeared on the App Store in 2009, will meet its fans again in 2016 with a feature film.

Voice calling has been added to BBM for users with its latest update.

Yemeksepeti has officially launched lokum.com, an e-commerce site delivering regional delicacies to users through local shops.

With Facebook's 2012 Year in Review feature, users can see their own 20 biggest moments from 2012.

YouTube has refreshed its design to be simpler and more focused.

Google has released the Google Maps app for iPhone. The app can be downloaded free from the App Store.

Yahoo now greets its users with a simpler, more usable redesign.