o3 Magazine focused on using open source technology in enterprise / business environments, published by Spliced Networks LLC. It was distributed free of charge in PDF to anyone and subscribers could sign up for email notification. Its production used only open source software - Scribus for setting page layout, OpenOffice for article composition and the GIMP for graphics production. Its publishers claimed that as evidence of their open source advocacy.
Its production ceased from October 2006 until July 2007 as the format, content and direction of the magazine were redesigned. It relaunched on July 14, 2007.