<p>First, consider the waitlist statistics. These are available from past years on each school's Common Data Set. The colleges may be willing to tell you how many were offered spots on this year's waitlist, but it is too early for them to know how many will accept a spot and how many will be admitted. For the schools that you mentioned:</p>
<p>Middlebury (2005-2006) - offered waitlist to 950, 579 stayed on it, 38 eventually admitted
Williams (2005-2006) - offered waitlist to 1123, 744 stayed on it, 23 eventually admitted
Vassar- could not find their CDS online but did find a reference to US News and World Report that said they admitted no students at all from their waitlist in 2004.</p>
<p>So it would appear, at least at these schools, that the chance of being accepted from the waitlist is rather small.</p>
<p>Another consideration is your financial aid award (if any). Oberlin is fairly generous with financial aid and tends to give more money in grants and scholarships than in loans. How much financial aid money will be left over for those admitted from the waitlist at the other schools? (I don't know the answer, but it is something that you may want to find out before deciding whether to stay on the waitlist at the other schools.)</p>
<p>I do not know how the schools in question run their waitlists, but I did attend a presentation by an admissions officer at another school concerning their waitlist procedures a couple of years ago. She said that one thing they kept track of was the number of times a student contacted them with questions, new information, etc... They gave bonus points to the applicants who were persistent in asking good questions and providing relevant new information, but did not appreciate the ones who would call with silly questions or send in a copy of every new homework assignment just to get their number of contacts up. You should certainly send stuff like end of marking period grades, end of semester grades, test scores from AP, IB or SAT II that they may not yet have, improvements in GPA or class rank and that sort of thing. You should certainly call with questions that cannot easily be answered elsewhere, such as asking how many are currently on the waitlist, whether they have an estimate of how many they will accept from the waitlist (ask this after May 1 when all the RD decisions are due), the availability of financial aid for students accepted from the waitlist and so forth...</p>
<p>Finally, think about why you applied to each school. Some of the ones you mentioned are quite a bit different from Oberlin. Try to decide which of your waitlist schools would really be preferable to Oberlin and eliminate any that are not. If possible, visit any that you have not already seen first-hand. Good luck.</p>