In a case dating back to 1997, the companies have been accused of accepting payments from firms that advertise illegal gambling in the US.

Microsoft, Yahoo!, and Google have agreed to pay a total amount of $31.5 million towards settlement of a case alleging that the companies are guilty of promoting online gambling.

Microsoft will pay a total of $21 million consisting of,
$7.5 million as a charitable donation for Missing and Exploited Children
$4.5 million to the US government
$9 million towards a 3 yr public service campaign to warn youngsters about illegal online gambling.

Yahoo! will pay $3million to the US government and $4.5 million towards the public service campaign.

Google will pay $3 million to the government