What happened if we were to print out a copy of the popular online encyclopedia Wikipedia, in a similar format? For the August 2007 edition of the English language Wikipedia, the result is below
The creator of this images describes it as
Using volumes 25cm high and 5cm thick (some 400 pages), each page having two columns, each columns having 80 rows, and each row having 50 characters, ˜ 6MB per volume. As English Wikipedia has around 7.5GB of text (August 2007, length of wikitext counted by myself) ˜ 1250 volumes. Note that this is a conservative estimate, as it doesn't include images, tables etc. which take up more surface than the text which describes them.