据市场调研公司eMarketer预测，美国社交网络广告投入有望在2011年达到30亿8000万美元，同比2010年增长55%。同时，eMarketer还指出2012年美国社交网络广告投入有望增长27.7%，达到40亿美元。

鉴于社交网络广告投入的大幅度增高，目前社交网站广告投入占美国网络广告总投入的10.8%。据游戏邦了解，2010年全球广告投入增长71.6%（达59亿7000万美元），而其中社交媒介网站占8.7%。

eMarketer Research Social Ad Spend

另外游戏邦还获知，因为Facebook社交网站近来的策略变化为其吸引了大量广告投资，eMarketer本次对2011年社交网络广告投入资金的预测同比去年8月的预期提高了10亿美元。

eMarketer的首席分析师Debra Aho Williamson认为：社交网站Facebook去年不仅在社交网络广告市场占有了一席之地，在整个网络广告市场上也占有相当的比重。相信在2011年，Facebook更将成为所有国际化广告商无法忽视的重要阵地。

eMarketer Research Social Ad Spend 2

此外，eMarketer还预测2011年美国本土对Facebook的广告投入将达21亿9000万美元，全球广告投入将达40亿5000万美元。当然，Facebook如果再推行一些积极政策，这一数据完全还有上升空间。（本文为游戏邦/gamerboom.com编译，转载请注明来源：游戏邦）

Ad spending on social networks in US will reach $3.08 billion mark by the end of 2011, according to revised estimates by eMarketer. This years estimated spending would be 55% ($1.99 billion) higher than what advertisers spent on social networking sites in 2010. eMarketer further expects that the ad spendings on social networks would rise by another 27.7% to reach $4 billion in 2012.

Due to the dramatic increase in ad spending on social networks, the social media sites now command a whopping 10.8% of the total ad spent online in the US. The increase in ad spending worldwide would be 71.6% (to $5.97 billion) this year, of which the share of social media sites would be 8.7%.

The renewed estimates for US ad spending on social networks has been $1 billion higher than the previous figures reported by eMarketer in August 2010. The primary reason for the change in projections has been Facebook’s stellar performance in attracting large sums of ad dollars.

According to Debra Aho Williamson, eMarketer’s principal analyst and author of upcoming report “Worldwide Social Network Ad Spending: 2011 Outlook:

2010 was the year that Facebook firmly established itself as a major force not only in social network advertising but all of online advertising. In 2011, its global presence is something multinational advertisers can’t ignore.

eMarketer expects Facebook to rake in $2.19 billion in ads from US and $4.05 billion worldwide in 2011. However, even these figures are not writings in stone, and the tally could be even higher if Facebook keeps up with its remarkable performance, says Williamson.（Source：Socialtimes）