It should hardly come as a surprise that folks are spending more and more of their time online on their cellphones, but a new Pew study released today has shed a bit more light on just how common that's becoming. According to the research group, 17 percent of all cellphone users (including those without smartphones) go online "mostly" on their cellphone, while 33 percent primarily use another device, and five percent use both equally -- a hefty 45 percent still don't use their phones to go online at all, though. Not surprisingly, those numbers go up when broken down by those who do at least use the internet occasionally on their phone -- 31 percent of whom go online primarily on their phone -- and there's an even bigger jump when looking at younger users. Among those 18 to 29 who use the internet on their phones, fully 45 percent use their cellphone for most of their online activities. You can find the full report at the source link below.