The number of people online around the world will grow more than 45 percent to 2.2 billion users over the next five years, according to a new report by Forrester Research, Inc. Asia remains the biggest global Internet growth engine: 43 percent of the world’s online population will reside in Asia by 2013, with 17 percent of the global online population in China. Growth rates in the US, Western Europe, and the major industrialized nations in Asia Pacific such as Australia, Japan, and South Korea will slow to between 1 percent and 3 percent.