Not being hostile, op said :
"i don't care about modern world. I am writing a paper on it. most of the research items i found is incredibly biased and judges its failures from modern perspective rather than why it failed for its time. if i can't find any good source i have to abondon it. "
I was simply pointing out that a forum built around video games would probably be the absolute wrong place to be looking, stating that libraries would be full of books on the subject.
By posting here he's looking for answers he can copy/paste into a paper instead of doing research (work) it requires, kind of defeating the point of the higher education system.
Besides all that, anything written here would be unusable with no source. I guess he could list in the sources "Random person on MMO-Champion", hell even give a link to the post. At least the teacher/prof. comments could be ss'd and posted for laughs.