Keep logs to study your online profile and decide what you can knock out, download a program like Freedom that locks you out of your browser, or take a "digital Sabbath".

保持记录，研究你的在线资料，并决定你可以删除什么，下载一个像Freedom这样的程序，使你远离浏览器，或采取 "数字安息日"。

youdao

What program do you like?

你喜欢看什么节目啊？

youdao

Aaron: What about this one? Do you like this program?

亚伦：这个怎么样？你喜欢这个节目吗？

youdao

Books lend themselves particularly well to an Internet-selling tool known as "collaborative filtering": Amazon and other Web vendors ask you to name some of your favorite products -- in Amazon's case, the books, authors, or genres you like best -- and then the retailers' software program tells you what other people with similar tastes liked so you can add to your shopping list.

FORBES: Does Amazon.com really matter?