Morning Buzz: Tesla Motors (TSLA), Exact Sciences (EXAS), Google (GOOG), Yelp, Inc. (YELP), Microsoft (MSFT)

Shares of Tesla Motors (TSLA) are down $7.56, or 2.94%, at $257.01 in pre-market trading Friday following the unveiling of a smarter and safer all-wheel-drive version of its successful Model S sedan. Tesla founder and CEO Elon Musk introduced the upgrade of his company’s Model S sedan Thursday during an event at Hawthorne Airport in […] View the full post at: Morning Buzz: Tesla Motors (TSLA), Exact Sciences (EXAS), Google (GOOG), Yelp, Inc. (YELP), Microsoft (MSFT) Related posts: Yahoo Buzz Now Open To Everyone Morning Update: Market Thread 5-11-2009 Yahoo – Google Deal To Be Investigated