Rezension:
Is there ? russian hero stallion Yahoo\'s share of the $17 billion U.S. display ad market isexpected to decline to 7.9 percent in 2013, down from a 9.2percent share last year, while Google\'s share is expected togrow to 17.6 percent. Facebook is likely to expand its marketshare to 16.5 percent, research house eMarketer estimates.
