With the number of people online worldwide expected to go from 1.5 billion today to 2.2 billion by 2013, according to Forrester Research, many of these networks will grow like Topsy.

• 根据ForresterResearch公司的调研数据，全世界互联网在线人数将从今天的15亿升至2013年的22亿，基于这一态势，许多社交网会像Tospy（注1）一样发展壮大。