Some methods for looking up someone's birthday online include social networking sites and people-specific search engines such as Pipl or Wink. It may also be possible to find people's birthdays by searching for their names on Google to find information they have previously made available about themselves online.
Facebook is a common and relatively easy way to find someone's birthday online. Some individuals choose to make their birthday information private, in which case only their Facebook contacts are able to find birth dates using this method. If an individual has chosen to make a birthday public, the date can be found on the profile page in a panel on the left side.