There are many extensions relevant to education: .school, .university, .education, to name but a few. Most, however, are quite general in their aim. The .mba extension focuses very specifically on the "Master of Business Administration" course, which is held in high regard worldwide, and offered at many universities and colleges.
Possible domain holders are students and teachers, universities, other educational institutions, authors, publishers and vendors of educational material, and others.
The .mba domain is one of the domains managed by the Donuts registry. Donuts has requested more than 300 extensions during the first application round for new gTLDs in 2012. With extensions such as .theater, .gallery, .band, .construction - all of which can be registered without restrictions - the Donuts portfolio serves all possible target audiences. With such a wide choice of extensions, the internet will target focus groups at the extension level, rather than merely at the domain level.