gdgt has launched a useful feature on their platform. gdgt users can now create alerts for products they want to purchase based on multiple criteria.
The best aspect of this new feature is that you can specify a price for the product you are willing to pay. Gdgt would send you a mail when there is a matching offering from an affiliate online store.
Gdgt has made it more powerful by offering customizations related to colors as well.
These features are already offered by many online stores. Good to see gdgt offering them as well!