The Consumer Reports headline reads, "That Facebook friend might be 10 years old, and other troubling news," but – interestingly – fewer and fewer parents find it troubling. Most of today's headlines about under-13 social networkers are about the Consumer Reports survey, which found that 20 million, or about 13% of Facebook's 150 million active US users are under 18 and 7.5 million, or about 5%, … [Read more...] about Under-age on Facebook: New study