It’s the ubiquitous communication technology of our digital age. Approximately half of the people in the world, including nearly 9 in 10 in the U.S., now use the internet. Yet few Americans talk about personal spiritual matters online, according to a recent survey from Baylor University.

More than three-quarters of U.S. adults (77 percent) say they never share their religious views via the internet. About 13 percent discuss their faith online once a month or less. And 10 percent do so at least once a week.

Some 39 percent of evangelicals never talk about their faith online.

Those of other (non-Christian) religions are most likely to engage in digital proselytizing, with 64 percent sharing their spiritual views online.

Among Christians, evangelical Protestants are more vocal about their faith online than any other group, with 61 percent sharing their views on the internet. Yet 39 percent of evangelicals say they never talk about their faith online.

About 60 percent of mainline Protestants, 60 percent of Catholics, and 44 percent of black Protestants say they always steer clear of personal faith matters online.

The unaffiliated, or religious “Nones,” are least likely to talk about their religious views online, with 85 percent always avoiding the topic. Some 13 percent of the unaffiliated use the internet to expound on their religious ideas once a month or less, and 2 percent talk religion online weekly or daily.