Ruth Roseboom checks her Facebook page at least once a day. The 78-year-old Celebration grandmother has 40 Facebook friends and likes to see what they are up to on any given time.

Roseboom is part of a growing number of adults logging onto social networks such as Facebook and Twitter to stay connected, according to a study released Friday by the Pew Research Center's Internet and America Life Project.

In fact, for adults 50 to 64 years old, the use of social networking sites have jumped by 88 percent in the past year, the study found. For those 65 and older, it's doubled.

The younger generation remains the biggest users of Facebook and other sites. But the report shows that seniors currently make up the fastest-growing group.

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"It's surprising to see just how fast they are growing," said Mary Madden, senior research specialist and author of Pew's study.

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