"We really focus on our supporters according to the type of proposition we want to go to them with, " says Lizzie Lleshi, community events manager at Save the Children.

BBC: The corporate ethos driving charities

As of Oct. 28, Mormons accounted for 46 percent of the total support for Proposition 8, according to the Mormon-run Web site MormonsFor8.com.

NPR: Mormons Divided On Same-Sex Marriage Issue

According to Sina Chief Executive Officer Charles Chao, there are several ways to make Weibo a money-making proposition.

FORBES: SINA Corp Monetizes China's Twitter