Founded in 1976, University of Phoenix is the largest online-focused university in the US. The school offers over 50 degree programs, including associate's, bachelor's, master's and even doctorates, in fields including business, nursing, education, health administration and criminal justice. It's accredited by the Higher Learning Commission (HLC). Undergraduate students can take classes entirely online, or at one of the over 200 campuses nationwide, enabling nearly every student to meet her scheduling needs. Financial aid is available to students who qualify.
Kaplan University is one of the largest online universities. Their name is also recognized as a top test preparation company. They offer associate's through master's programs in a variety of areas from education to nursing to criminal justice. Currently, Kaplan accepts both full- and part-time students to their online-only programs.
Offering associate's through master's programs, Ashford University serves working students who are trying to continue their education. The focus is on adults who started their degree elsewhere, and want to finish it. Programs include international business, entrepreneurship and accounting.