We partner with over 108 affiliated Air Force schools, 82 Education Service Offices located worldwide, and more than 1,500 civilian academic institutions to serve approximately 300,000 active, guard, and reserve enlisted personnel, making CCAF the world's largest community college system.
(April 2010). A virtual IP address (VIP or VIPA) is an IP address that doesn't correspond to an actual physical network interface (port). Uses for VIPs include Network Address Translation (especially, One-to-many NAT), fault-tolerance, and mobility.
Only VIPs can create content like rooms and virtual goods to sell. IMVU uses a strong verification process to keep users under 18 from getting the adult Access Pass, but there seem to be cracks in the system that allow adult content to filter out into public areas, making the site iffy for users under 18.