Clearly, there's an awful lot of social networking going on. And more adults are multi-tasking, with more than half using two or more social media sites, Pew said Friday. But Facebook still acts as "home base" — it's the most popular site for people who use only one site, and has significant overlap with other sites. There are more Facebook users now who also use Twitter, Instagram, Pinterest and LinkedIn, Pew said.
And while Facebook helps many people keep in touch with family and friends, some of those "friends" might get short shrift. The median number of Facebook friends is 155, Pew reported, but when asked to approximate how many of their Facebook friends respondents considered to be "actual" friends, the number dropped to 50.
Pew said its survey had a margin of error of plus or minus 2.5 percentage points.
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