Non-PRO Arabic to English Other Internet, e-Commerce

I'm debating with another non-native speaker about the most natural way to say "to go online" as in "Americans on average go online 15 times a day according to the latest research."

Also, the reason we're looking for this phrase is because we're teaching high school students learning Arabic as a second language, so as long as it's idiomatic, the simpler the better. Thanks!