Diploma mills and for-profit schools take advantage of the fact that many prospective students assume that accreditation conveys legitimacy and quality, as determined by an official and/or independent authority.<p>Besides the apparently bogus agencies cited in the article about Lorenz, established for-profits control their own national accreditation body, the Accrediting Council for Independent Colleges and Schools (ACICS). Another tactic is to latch on to national agencies that have traditionally served vocational schools and community colleges, such as the Accreditation Council for Business Schools and Programs (ACBSP). This is how the University of Phoenix has accredited its MBA and DBA programs.<p>Regional agencies are regarded as the gold standard in the United States, but the for-profits figured out a way to game that system, too: Buy out small, struggling non-profit colleges that have regional accreditation, and then replace the old curriculum and mission with scalable, high-profit online programs. The regional accreditation transfers, although there's no guarantee it will be renewed the next time it is reviewed.<p>One well-known example involved an obscure Catholic school in Iowa with 312 students known as Franciscan University of the Prairies. It was bought in 2005 by Bridgepoint Education, renamed "Ashford University", and turned into an online university with 42,000 students. It was nevertheless able to keep its regional accreditation from the North Central Association of Colleges and Schools, although it is apparently trying to transfer accreditation to the Western Association of Schools and Colleges -- the same body that has accredited Stanford, the UC and California State systems, etc.<p>For more information about the for-profit higher education phenomenon in the U.S., I recommend the following Frontline special, "College Inc.":<p><a href="http://www.pbs.org/wgbh/pages/frontline/collegeinc/" rel="nofollow">http://www.pbs.org/wgbh/pages/frontline/collegeinc/</a>