Do you regularly scan the Internet for news? If you answer yes to this question, you might consider yourself as staying up-to-date with events from around the world. However, according to Eli Pariser, author of "The Filter Bubble," you are mistaken. Web search tools, while faster, tailor what you see.
In a TED lecture, Pariser gives illustrations of this phenomenon from his own experience on Facebook and from Web searches two of his "friends" conducted.
This should serve as a reminder that we ought to be looking at a variety of sources. After all, we don't want to be in a Web-ghetto.