Logging into social networking sites, such as MySpace, from a mobile phone is fairly common, especially in the U.S., according to Seattle-based M:Metrics, which conducts surveys.

It found that 12.3 million consumers in the U.S. and Western Europe reported accessing a social networking site on their mobile device in June.

A majority of those occurred in the U.S., where 7.5 million, or 3.5 percent of all subscribers, logged in.

Trailing behind the U.S. was Italy with 1.3 million users, the UK with 1.1 million, and Spain with 751,000.

M:Metrics said that MySpace got the most attention in the U.S. and in the United Kingdom, whereas MSN was the No. 1 choice in the other areas surveyed.