New Coupon Codes From Alibris:

Use promo code HALEY on checkout at www.alibris.com  to receive $3 off orders of $30 or more. Expires June, 27, 2007.

Use promo code ROOTS on checkout at www.alibris.com  to receive $10 off orders of $100 or more. Expires June, 27, 2007.

Also, Dover is offering it's bestsellers at 25% off right now and Library and Education Services is having a new 5-day sale.  Check the Shop @HWTK's sales and coupon codes page for more sales information.