"Search Inside the Book" is a feature which allows customers to search for keywords in the full text of many books in the catalog.[126][127] The feature started with 120,000 titles (or 33 million pages of text) on October 23, 2003.[128] There are about 300,000 books in the program. Amazon has cooperated with around 130 publishers to allow users to perform these searches.[citation needed]

Shopping robots like camelcamelcamel, the tracktor and Online Price Alert can help you track prices on Amazon, but you have to be patient. Set up an account, then simply copy the URL for the exact product you want from Amazon’s website into your account. The Camelizer and Tracktor chart out the recent price history so you know if it is going up or down. All three sites alert you when the price matches what you designed as the price you will pay.
I do not like the security of this apps. By default any one in my home can just open it up and start buying things on my account. I would like it to just add things to my cart on the TV and them buy on "My" Computer or "My" phone. I know you can setup a PIN for "videos, purchasing and certain types of content".But, you then need to enter the PIN for $0 videos. Also, anybody with access to the Fire TV remote can just install the apps and start buying things, no pin, no password, just because you have a Fire TV setup on your account. Amazon you need to have a separate PIN for Buying videos, parental control (ratings), Apps and Shopping. And by default the app should setup a PIN.
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