Tunes - Tuneflow

Firefox: Sure it's fun to hunt for deals online, but it's even better to be alerted when an item you want is at its lowest price. Ookong is an Amazon.com price comparison tool you can use to track price histories.

If you're wondering if it's worth buying something on eBay because it might be readily available and cheap on Amazon or vice versa, Q-Compare can help you comparison shop between the two services.Click on the image above for a closer look.

We've all been here: you pick out a few items from Amazon.com, you're about to finish your order, and Amazon informs you that you're a mere $3.72 away from free shipping. FillerItemFinder finds a cheap item you actually want to meet the cutoff.