2. Key word
1.computers
Reason:Because it is painted blue color.
2.e-commerce
Reason:Because it is painted blue color.
3.patents
Reason:Because it is painted blue color.
5. Sentence
2.The other main feature that puts Amazon.
com on another level is the multi-leveled
ecommerce strategy it employs.
Reason:Because this sentence explains about
the other main feature.
6. Sentence
3.If you let the Web site strick a cookie on your
hard drive, you´ll find yourself on the receiving
end of all sorts of useful features that make
your shopping experience pretty cool, like
recommendations based on past purchases
and lists of reviews and guides written by users
who purchases the products youŕe looking at.
Reason:Because this sentence includes two
words painted blue color.