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Twitter adds photo-tagging

You can now tag multiple people in a tweeted photo, and share more than one photo per tweet.

Screenshot by Donna Tam/CNET

Twitter ramped up its focus on images Wednesday, adding the ability to tag people in a photo, and share up to four photos in a single tweet.

The company said in a blog post that it's making photos "more social" with these new features. Users can tag up to 10 people in a photo and it won't affect the 140 character word count for their tweet. To tag someone, users tap "Who's in this photo?" and then type in the person's username.

Twitter will send notifications to folks who are tagged, and these settings can be adjusted in user settings. When you share multiple photos in one tweet, Twitter will automatically create a collage to display them. These elements will also show up in embedded tweets.

The multiple-photos feature will roll out for iPhone users Wednesday, but Twitter says support for Android and the Web is coming soon.

Twitter has been slowly building on its photo features. Known for its quick disbursement of information through 140 characters of text, Twitter started juicing up its photo efforts as photo-sharing app Instagram (now owned by Facebook) became popular.