1) Online and blended learning enrollment in K-12 schools has grown substantially between 2005-2008 and is projected to continue growing significantly through 2016. 2) The study examines the role of online learning in addressing issues facing American high schools, such as low graduation rates that have been described as a "crisis". 3) Survey results found that high school administrators see benefits of online and blended learning programs for providing course access, differentiated instruction, and helping at-risk students recover credits to graduate.