Red this for a perspective. (where have I heard this word before---hmmm)
http://www.factcheck.org/elections-2008/he_lied_about_bill_ayers.html
The people that will not give up on trying to make Obama and Ayers out as "BFFs" really don't want to know the truth, so you are probably wasting your breath, but this is a great source, and confirms everything I have read elsewhere on what is proving to be a rather silly subject, like the birth certificate stuff, the lapel pin, the Rezko connection, labeling him as Muslim ( to scare people that believe all Muslims are terrorists), foreign financiers of his campaign (false), etc.