Sanford Wallace, the so-called ‘Spam King’ of Facebook, has plead guilty to sending in excess of 27 million spam messages using the social network. This is a legal matter that stretches back years, and involves approximately 500,000 Facebook accounts that were compromised. Wallace, now 47, plead guilty yesterday to using Facebook for mass spamming in 2008 and 2009. Wallace plead guilty to both fraud and criminal contempt — he is said to have violated a court order that had barred him from accessing Facebook. Sentencing will not take place until this upcoming December.