http://www.religiousrightwatch.com/2011/12/report-tracks-explosion-of-religious-lobbying-in-washington-cnn.html

More than 200 groups are doing faith-related lobbying and advocacy in the nation’s capital, compared to fewer than 40 in 1970, according to the report. Put together, the groups employ at least 1,000 people.

The report, released Monday by the Pew Research Center’s Forum on Religion and Public Life, found that religious groups spend $390 million a year to influence U.S. domestic and foreign policy.