 The Gordon and Betty Moore Foundation awarded PLOS a $9 million grant in December 2002 and $1 million grant in May 2006 for its financial sustainability and launch of new free-access biomedical journals.Later, "PLOS One" was launched in December 2006 as a beta version named "PLOS One".It launched with commenting and note-making functionality, and added the ability to rate articles in July 2007.