By Brian Stelter, CNN
Nearly a decade into its existence, the news Web site Mashable is taking on outside investors for the first time.
The site plans to announce on Monday that it has raised $13.3 million in an equity investment round led by Updata Partners. The investment will fuel an expansion plan that entails new areas of coverage and the opening of more offices.
By raising millions of dollars, Mashable is joining a number of startups that are building 21st century news brands with the support of outside investors. Among those brands: Vox Media, BuzzFeed and Business Insider.