The Associated Press has started to run two Samsung sponsored tweets a day as part of its coverage of the Consumer Electronics Show (CES) in Las Vegas.
However, the news agency has been quick to emphasise that these tweets are separate entities away from the company's main coverage of the event and a number of stringent guidelines have been put into place in regards to the correct use of such a business model.
Financial details have not been revealed, but Twitter and its Promoted Tweets service were not involved in the deal.
Although Twitter currently allows such deals to take place, whether it will continue to do so in the future is up for debate.
After all, the company relies on selling ad space to those in the Internet marketing industry using social media for business purposes and deals like this could potentially undermine its own offerings.
Twitter itself offers a number of ad programs for those wishing to use the platform, and unlike in this case where Samsung tweets would only be seen by those on the AP twitter feed, the software Twitter provides would cover the entire network.
When some celebrities have many million followers however, firms may opt to use them for advertising purposes instead.
Whilst Twitter has no objections to these sort of deals, celebrities in the UK have occasionally found themselves in a spot of bother with advertising agencies in regards to using the platform for product placements.
Manchester United footballer, Wayne Rooney, found himself censured by the Advertising Standards Authority over a tweet, which was in fact part of a wider part of a marketing campaign for Nike.
A campaign involving fellow United star Rio Ferdinand tweeting about knitting as part of a Snickers campaign, was ruled above-board by the ASA however.
In the US, it has been suggested that some celebrities earn up to $10,000 dollars for a Twitter endorsement - the only requirement by the FTC is that they end tweets with either 'ad' or 'spon' hashtags.
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