SOCIAL networking website Facebook is to make the personal profiles of its 39million members available to online search engines next month. The site will let those using Google, Ask or Yahoo! see if someone has a Facebook profile and see their photograph. Until now, only members or invited friends could see the information. The only way to prevent details being revealed is to adjust security settings. Facebook said it hoped the move would attract more people to its site. The announcement is the latest security concern to dog the site. Specialists have questioned whether people should include their date of birth on a profile because it is a common question used by banks to establish identity.