Here are some word clouds I did a while ago based on forum posts(from various forums).
http://i4.photobucket.com/albums/y126/labile/mentalscape2.jpg
http://i4.photobucket.com/albums/y126/labile/mentalscape3.jpg
http://i4.photobucket.com/albums/y126/labile/moodscloud.jpg
http://i4.photobucket.com/albums/y126/labile/journeythroughmymind.jpg