Super important addition:
(a) Licensee may: ...
(ii) use Software for non-commercial, educational purposes only, including conducting academic research or providing educational services
(b) Licensee may not: ...
(iii) use Software for any commercial purpose.
http://www.jetbrains.com/student/license.htmlAll of which is fair (it's free, and they don't owe you anything), but restrictive. Technically you can't even use if for your personal side projects unless they can be classified as "academic research"