Here's another great chart detailing U.S. Online Advertising Spending trends.

eMarketer estimates that paid
search spending will not only rise in 2009, but double between 2009 and
2013, when it will approach $24 billion.

Even if the economic crisis levels
off this prediction, made in August 2008, the accountability of paid
search makes it more valuable than most other forms of advertising,
online or offline.

Marketing accountability is key.

US Online Advertising Spending

Here are some other encouraging links charts about online advertising viewing penetration.

U.S. Online Video Advertising Viewer Penetration

And online advertising viewing too. .

U.S. Online Video Advertising Viewers

Certainly this is an area to increase your marketing skill as most marketers agree!

Tactics marketers plan to increase