In the past "sex" was one of the most popular search queries. Nowadays the Internet has changed a lot but according to a recent survey search queries for adult material constitue about 20 percent of searches on cell phones!
Computer scientists Maryan Kamvar and Shumeet Baluja analysed 1 million searches made using the firm's mobile search software. They found that "adult" material constituted 20 per cent of the searches on cellphones, but only 5 per cent on PDAs. Just 8.5 per cent of searches on desktop computers are for adult material.
The Google team say that people regard their phones as intensely personal devices and so "may feel more comfortable querying adult terms" on them, perceiving a smaller chance of others discovering their activities.