The number of search engine users will surpass 200 million this year, according to eMarketer. Nearly 84% of those who go online will use a search engine at least once per month in 2013. eMarketer expects that search engine users will represent two out of three people in the US by 2015. Growth will fall below 3% next year and slow throughout the remainder of the forecast period. Like email, search is one of the most basic and necessary online activities and has reached saturation among internet users. Read the rest at eMarketer.