Web site FreeShipping.org rounds up free shipping coupons to over 600 stores, helping you save cash on your next online purchase. Similar to previously mentioned Free Shipping On, FreeShipping.org appears to have a slightly broader reach and better navigation. The two sites also appear to showcase slightly different coupons for some sites, so both might be worth a look before you check out and pay for shipping. Alternately, if Amazon is your online retailer of choice, the Amazon Filler Item Finder is a must-bookmark site for getting to free shipping on your Amazon purchases. FreeShipping.org [via Gomestic]