eMarketer estimates Facebook’s share of US online display ad revenues will grow to 17.7% in 2011, up from a 12.2% share last year. Facebook is expected to see $978 million in additional display revenues in 2011—more than display revenues will grow this year at Yahoo!, AOL, Microsoft and Google combined.

US display advertising revenues at Google will top $1 billion for the first time in 2011, as the company’s share of overall US display revenues grows to 9.3%, eMarketer estimates. That’s up from an 8.6% share in 2010, when Google’s US display revenues grew an estimated 140.5% to $855 million.

For more of eMarketer’s coverage on US display advertising revenues at top ad-selling companies, click here.

Facebook’s share of US online display ad revenues will grow to 17.7 percent in 2011, up from a 12.2 percent share last year, according to eMarketer.

US display advertising revenues at Google will top $1 billion for the first time in 2011, as the company’s share of overall US display revenues grows to 9.3 percent.

For more of eMarketer’s insights and analysis on the display ad competition, click here.

As Myspace enters advance talks with an investor group, here’s a look at the social network’s advertising revenues.

eMarketer estimates that ad spending on Myspace was $288 million in 2010, down 17% from our August 2010 estimate of $347 million. 2011 and 2012 will be even more diminished, with ad spending estimated at just $184 million this year and $156 million next year.

Here are some figures to help put the New York Times’ earnings in context of US ad markets for digital and print newspaper advertising:

Digital newspaper revenues are expected to grow 8.6% to $3.3 billion in 2011, up from $3 billion in 2010, eMarketer estimates. Print newspaper revenues will fall 6% to $21.4 billion in 2011, down from $22.8 billion last year.

Online advertising spending passed print newspaper advertising spending for the first time in 2010, when overall spending on internet ads reached $25.8 billion, compared to $22.8 for print newspaper ads.

For a complete report on US Major Media Ad Spending, available to Total Access clients, click here.

In conjunction with the TV and major media ad spending estimates we released Tuesday, here’s a closer look at eMarketer’s new US magazine and newspaper ad spending forecasts.

In December 2010, eMarketer estimated that online ad spending passed newspaper ad spending for the first time that year. eMarketer estimates print ad spending at US newspapers will fall 6% to $21.4 billion in 2011, after revenues shrunk 8.2% in 2010. If there’s a bright side for the newspaper industry, it’s that massive losses to print newspaper ad spending will taper off in 2011 and continue to get smaller. In 2014 and 2015 spending will drop just 1% each year.

Between 2009 and 2015, eMarketer estimates print newspaper ad revenues will drop by a total of $5 billion. Over the same period, newspapers’ share of total major media ad spending will fall from 16.9% to 11.4%, the greatest loss in share of any medium.

eMarketer forms its forecast through a meta-analysis of data aggregated from research firms and other organizations that track advertising spending at magazines and newspapers. eMarketer benchmarks its US newspaper ad spending projections against data from the Newspaper Association of America (NAA), for which the last full year measured was 2010. Newspaper spending includes classified, national and retail.

Print magazines, like newspapers, will see continuing declines through 2015. Overall US advertising revenues at magazines fell 2.9% to $17 billion in 2010, down from $17.5 billion in 2009, according to eMarketer.

As with newspapers, the biggest losses for magazines came on the print side. eMarketer estimates print ad revenues at magazines fell 5% to $14.7 billion in 2010, down from $15.5 billion in 2009. This year, eMarketer estimates print revenues will fall 5.6% to $13.9 billion.

Gains in online revenues, which will rise from $2 billion in 2009 to an estimated $3.1 billion in 2015, will fail to offset the losses in print—with total US ad revenues at magazines expected to drop to $14.7 billion in 2015.

eMarketer’s magazine ad spending projections are based a meta-analysis of data gathered from over a dozen sources, including Myers Publishing, PricewaterhouseCoopers, ZenithOptimedia, the Publishers Information Bureau and the US Census. eMarketer’s print magazine spending figures include both consumer and business publications. You see a comparative estimate of eMarketer’s forecast alongside projections from other firms below.

For more information on eMarketer’s coverage of advertising spending, you can read the press release here.