Over the past few days we’ve been reporting about Twitter’s new photo-sharing service, which will allow users to upload and attach photos to tweets directly from Twitter.com, the official Twitter apps, and inevitably your favourite Twitter client shortly after that.

The feature is rolling out over the next few weeks, and will be closely-watched by the existing Twitter photo-sharing platforms such as Twitpic, yfrog and Lockerz, who risk losing an enormous number of users – and advertising dollars – to Twitter’s official product, while Photobucket, Twitter’s image-hosting partner of choice, have so much to gain.

But just how much is at stake? This new study from analytics firm Sysomos on how people are currently sharing their images on Twitter gives us some insight into who has the most to lose.

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