Since its launch in 2006, Twitter has barely strayed from its simple but effective formula of hashtags and limited character posts.
Like McDonalds, you can check in anytime of the day, anywhere in the world and know what you are going to get.
But that is all about to change, with Twitter piloting a $99 monthly automatic Tweet promotion service to boost the visibility of posts.
This is a game-changer for Twitter, and follows platforms like the social media king Facebook, which has been offering paid post boosting for years.
And it comes with built in analytics, again just like Facebook, so you can see just how far and wide your tweet has travelled.
The pilot is in its infancy, with advertising only being boosted and invitations required to take part.
But if it is successful – read: makes money – then you can expect this pilot to become mainstream, and evolve beyond basic advertising posts.
And you can bet your bottom dollar that organic reach will drop in the future, just like Facebook has done.
This means the days of sharing content on Twitter (garnished with the appropriate hashtags and tags) and reaping optimum results for free could be drawing to a close.
It could also be a desperate grab for revenue, considering its user base in the US declined by 2 million this month.
Revenue also fell by $5 million globally, leaving investors and shareholders nervous.
Watch this space to see how this paid content will effect Twitter, for better or for worse.
Bling bling: Twitter gon get paid. Picture: Tinobusiness