It begins. Twitter #music launches in iTunes.

Twitter is getting into the music business. Unfortunately, it is only available for "influencers" for the time being.

Vine is now the most popular free app in the App Store.

The section, found in the Explore tab, will feature the fastest-rising hashtags that have quickly become popular.

Version 5.5 of the app also brings faster launch times and other general performance upgrades.

Vine is out with an update that is full of new video sharing features.

A new update has arrived for Tweetbot for Mac.

The iOS app will reportedly focus on music discovery.

It's late, and whoever's handling the official Twitter account of Apple's iBookstore tonight might have had one drink too many.

Twitter has a decision to make.

Version 5.4 of the app also changes where users can upload videos by pulling support for Mobypicture, Vodpod, and Posterous.

In a couple of months, TweetDeck for iPhone, along with TweetDeck for Android and TweetDeck AIR, will be no more.

Mobypicture will be removed from the Twitter iOS app on account of a technical issue that is causing upload failures and, consequently, complaints from users.

The new model should be a boon for developers of App.net clients in the App Store.

All content in the Discover part of the app will appear as a single stream on the iPhone.

Twitter launches Vine - Make a scene app for the iPhone/iPod touch.

Twitterrific 5 for Twitter has received an update in the App Store.

The Twitpic founder is out with Heello, a cross between Twitter and App.net.

Dropbox buys Snapjoy in hopes of competing against Instagram, Snapseed, and Twitter.

The folks behind Twitterrific 5 for Twitter are making money each time you click an App Store link.

We hoped this day would never come, but it has. It is time to take Instagram off of our iPhones and use one of these eight alternatives.

Static for iPhone makes it simple to track many of your favorite online accounts.

New update brings native photo-editing support to Twitter app for iPhone.