According to the latest data from the Pew Internet and American Life Project, just 24% of all Internet users -- or 19% of all U.S. adults -- have actually used the Internet to complete a voice call. On any given day 5% of internet users are going online to place phone calls, says Pew. That's some significant growth since the last time Pew asked these questions in early 2007, and found that 8% of internet users (6% of all adults) had placed calls online and 2% of internet users were making calls on any given day. The group also found a notable spike in video calling, finding that 7% of cell phone owners had participated in video calls or online chats with their handheld device. Pew notes that most VoIP users unsurprisingly tend to be younger, and most live in urban and suburban areas.