Now that back to school season is upon us, Microsoft has launched its promised Bing for Schools in a pilot phase. The test lets more than 800,000 K-12 students search Bing ad-free while receiving daily learning activities, improved privacy and automatic adult content filtering. Schools wanting to join the pilot can apply today. Those who have long since graduated can pitch in, too: Microsoft has launched a program that lets Bing Rewards members contribute their credits toward Surface RT tablets for their preferred schools. All you need to know is available through the source links; we're just wondering where Bing for Schools was when we were kids.