Free or Best Offer would be like lightning. :) I know in these parts a $10 pullet would be fair and gone fast, but depending on where the OP is that may not be the case.
You could easily get $10+ for point of lay pullets, but it really depends on the market and how saturated your area is. Craigslist is a great place to list and scope out the competition to see what the average prices are and to list a tad cheaper for faster movement.