With this 'spy' software you can automatically keep track of prices in 'New', 'Used' and even 'Collectible' categories on Amazon's Marketplace!" If you are selling items such as Books or DVDs on Amazon Marketplace then this software will give you a massive advantage over other Amazon sellers. This is because the software will send you an email to alert you whenever a rival seller beats or matches your item's price. Make sure you check out this great software today! Sell Quicker, Sell Easier and Sell More...all with this cool 'spy' software!