According to Barclays Capital estimates from earlier this year, online ad spending is expected to reach $30 billion in the U.S. this year — a little more than 15% of the overall U.S. advertising market, and up about 15% from its estimate for 2010. But TV could reach $60 billion in ad spending this year — twice as much as online. (All stats excluding political spending.) TV is not growing as fast as online, but it’s still the biggest recipient of ad dollars. And that’s why everyone wants a piece of it. [via]