ACTUALLY USEFUL TIER:
http://www.navaching.com/hawkeen/micro.html
http://www.dreamviews.com/f12/inducing-trance-wild-part-2-a-29491/
http://www.dreamviews.com/f32/advanced-vision-control-tutorial-80879/
http://www.scribd.com/neuroneuro

HIGH TIER:
http://www.abovetopsecret.com/forum/thread643286/pg1
http://dreamcatcher.net/jeremiah/10680
http://теслинавизијаинтернета.срб/wp-content/uploads/Nkola_Tesla_My_Inventions.pdf

MID TIER:
http://www.inwardquest.com/questions/9561/how-can-i-visualize-with-my-eyes-open-master-key-system-part-10
http://www.dreamviews.com/f19/who-here-can-actually-see-what-they-visualize-134943/index3.html

LOW TIER:
http://mnemotechnics.org/x/forums/tips-on-how-to-increase-visualization-1321.html
http://www.meditationexpert.com/meditation-techniques/m_third_eye_meditation.html