Since taking over as the CEO of Yahoo Inc. (NASDAQ:YHOO) in July 2012, Marissa Mayer has been on a spree of acquiring smaller tech companies, leaving many questions about Yahoo's strategy. At the 2014 International CES, Mayer finally revealed some of her plan, which includes new apps, websites, improvements to existing projects, and, of course, more acquisitions.

From the stage of the annual consumer electronics show in Las Vegas, Mayer launched Yahoo News Digest and Yahoo Magazines, two products that will be at the forefront of Yahoo’s media strategy.

Yahoo News Digest is the result of Yahoo’s acquisition of Summly, a summarizing artificial intelligence technology developed by Nick D’Aloisio, for $30 million. Yahoo News Digest will deliver a small feed of two news stories per day that are written by computers, drawing from sources around the Web to include text, images, video, maps and edited by humans.

David Pogue, the New York Times tech columnist hired by Yahoo last year, joined Mayer on stage to introduce Yahoo Magazines, which will use the Tumblr platform that Yahoo purchased last May for $1.1 billion. Pogue demonstrated the new digital magazines by showing off Yahoo Tech (which also launched during the keynote), and anyone familiar with Tumblr will instantly recognize the format.

Speaking of Tumblr, Mayer also revealed Yahoo’s advertising strategy with the popular social blogging network. Tumblr CEO David Karp joined Mayer on stage to announce that all of Tumblr’s ads, which come in the form of sponsored posts, are now powered by Yahoo Advertising, Yahoo’s new advertising platform that is meant to unite ads across all Yahoo properties.

Yahoo also announced a new Smart TV app, but no Yahoo event would be complete without the announcement of an acquisition. Mayer revealed that Yahoo purchased Aviate, an Android home screen launcher that customizes how apps and notifications appear based on what the user is doing.  

There is still a lot of mystery around many of the Yahoo acquisitions of the last year, but Mayer's CES keynote finally revealed how the Internet company is connecting the dots.

You can watch the entire keynote speech here