Poster

How to fit at least 250 words onto a poster? My Graphic Design training is telling me that this is a fundamentally wrong thing to do. However, a look on the internet tells me that there is something called a 'research poster' which is used mainly in the sciences to present the results of research. It contains far more information than you would usually find in a poster. Here are some links that I have found: 

http://www.westernpsych.org/pdf/WPAPosters.pdf
http://www.ncsu.edu/project/posters/NewSite/ExamplePosters.html
http://www2.le.ac.uk/departments/gradschool/resources/presenting/posters/examples