<p>There is an entire thread with over 54 pages of entries on this subject at college confidential, you may want to look at that thread</p>
<p><a href=“http://talk.collegeconfidential.com/sat-act-tests-test-preparation/696125-psat-scores-national-merit-semifinalists-2009-h-s-class-2010-a.html[/url]”>http://talk.collegeconfidential.com/sat-act-tests-test-preparation/696125-psat-scores-national-merit-semifinalists-2009-h-s-class-2010-a.html</a>
That thread will answer most if not all of your questions</p>