Top 5 Promoted Tweets Worldwide, ranked by engagement 2010-2011

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Twitter, which continues to roll out new ad products as more marketers adopt Promoted Tweets, Promoted Trends and Promoted Accounts, reports average engagement with promoted tweets at 3% to 5%, rising to 7% to 10% when promoted tweets are combined with promoted trends. Many prominent campaigns have boasted much better performance, according to information from the microblogging site and Advertising Age.

China to Become the No. 2 Ad Market in the World via @eMarketer

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Advertising in China, still developing compared to countries like the US and Japan, is beginning to catch up to the demand of consumer-facing companies looking to expand their reach among the world’s largest population and its growing buying power. eMarketer estimates that by the end of this year, ad spending in the China will increase enough to make the country the second-largest advertising market in the world.