Douglas Harper's Etymology Dictionary
Wiktionary
n. 1 The compulsion to write books. 2 Used as part of the name of various surrealist techniques, e.g., a method in which dots are made at the sites of impurities in a blank sheet of paper, and lines are then made between the dots, see "http://en.wikipedia.org/wiki/Entoptic%20graphomania".
Wikipedia
Graphomania (from Greek γραφειν — writing, and μανία — insanity), also known as scribomania, refers to an obsessive impulse to write. When used in a specifically psychiatric context, it labels a morbid mental condition which results in writing rambling and confused statements, often degenerating into a meaningless succession of words or even nonsense and called then graphorrhea (cf. hypergraphia). The term 'graphomania' has been used in early 19th century by Esquirol and later by Eugen Bleuler, becoming more or less usual Graphomania is near condition to typomania - obsessiveness with seeing one's name in publication or with writing for being published, excessive symbolism or typology.
Outside the psychiatric definitions of graphomania and related conditions, the word is used more broadly to label the urge and need to write excessively, whether professional or not. Max Nordau, in his attack to what he saw as degenerate art, frequently used the term 'graphomania' to label the production of the artists he condemned (most notably Richard Wagner or the French symbolist poets )
Milan Kundera ironically explains proliferation of non-professional writing as follows:
Usage examples of "graphomania".
But this type imperceptibly turns into a characteristic form that one might term the graphomania of the Project.