The Guardian reports today (UK mobile phone firms to sell data about customer activity) that mobile telecomms firms have been harvesting data about their customers web browsing habits, and that they plan to uses these data to increase advertising revenues.
The GSMA's chief marketing officer, Michael O'Hara, said: "We can see the top sites, see where people are browsing regularly. See the time that sites are being viewed, the number of visits, the duration of visits and we can also get demographic data so you can have age ranges, male/female ranges.