Rochester, N.Y. - I'ts a good day for a challenge!

San Francisco (AP) – Yahoo is buying online blogging forum Tumblr for $1.1 billion as CEO Marissa Mayer tries to rejuvenate an Internet icon that had fallen behind the times.

For the second straight day, portions of Oklahoma have been damaged by a significant tornado -- this time touching down near a major metropolitan city, and causing winds of 200 miles-per-hour.