Marissa Mayer and Yahoo are on fire, acquiring gaming company PlayerScale

If I can paraphrase a popular Alicia Keys song, this woman is on fire. Marissa Mayer is clearly moving Yahoo back into the center of the Silicon Valley tech conversation.

Days after finalizing a $1.1 billion Tumblr acquisition, and coming hot on the heels of a massive image-buffing retrofit of the photo-sharing community Flickr, Yahoo has bought yet another company.