![Social Media Matrix [TABLE]](https://trends.e-strategyblog.com/wp-content/uploads/2015/01/PI_2015-01-09_social-media_10.png "Table - Social Media Matrix")
The proportion of Facebook users who also use another platform increased significantly since August 2013 for each platform. That is, there are more Facebook users this year who also use Twitter, Instagram, Pinterest and LinkedIn than there were last year. Similarly, there are more LinkedIn users who use Twitter, Instagram and Pinterest than there were in 2013. Finally, there are more Pinterest users on Instagram and LinkedIn than in 2013. These increases likely reflect the overall trend toward multiple-site use described above.
Turning to sites other than Facebook, a significant level of overlap exists between Instagram and Twitter users—58% of Twitter users also use Instagram, and 52% of Instagram users also use Twitter. Among non-Facebook sites, this is the highest rate of “reciprocity” between user groups measured. Read the rest at Pew Internet.
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