MrBeast is laying the groundwork for a new business helping others with ads and marketing

Jimmy Donaldson — better known as Mr. Beast — is the biggest personality on the internet. His former manager says platforms like YouTube and TikTok are working to prevent another star breaking through in the same way. : Weiss Eubanks/NBCUniversal via Getty Images MrBeast is exploring offering advertising services, according to new trademark filings. The top YouTuber has filed applications that list plans for a range of ad and marketing services. It's the latest sign of his ambitions to expan...