facebook.comは安全ですか？

The ads placed on FB by other Companies should be fully virus and spyware checked before allowing them to place their ads. As it is now , click on any ad at your own risk as you have no way of knowing that the website you are being redirected to is safe and make sure you have a good anti virus protection program.

Facebook is a social networking website launched in February 2004 that is operated and privately owned by Facebook, Inc., with more than 500 million active users in July 2010, which is about one person for every fourteen in the world. Users can add people as friends and send them messages, and update their personal profiles to notify friends about themselves. Additionally, users can join networks organized by workplace, school, or college. The website's name stems from the colloquial name of books given to students at the start of the academic year by university administrations in the US with the intention of helping students to get to know each other better. Facebook allows anyone who declares themselves to be aged 13 or older to become a member of the website. Taken from Wikipedia.