Ookong Firefox addon is recommended on MakeUseOf.com
Written by Evan Wondrasek (@evanw twitter) on Feb 26, 2010 3 Useful Firefox Add-ons To Help Save You Money http://www.makeuseof.com/tag/3-firefox-addons-save-money/ “Ookong for Amazon Ookong helps you make purchases on Amazon at the “right time” by tracking price history and providing notifications when prices drop. Prices on Amazon fluctuate constantly, so this add-on will let you [...]
