7. Trapping Topic-Based Information

In the last chapter, we looked at trapping internal information—information such as who’s linking to your site, or who’s reading your RSS feed.

While that kind of trapping has its place, especially if you’re trying to make a living from your Web site, a broader use for information trapping lies in trapping external, topic-based information. You might want to use the external information you trap to create content for your site, pursue a degree, educate yourself, and so on. The possibilities for the kinds of topic searching you can do are almost endless.

Unfortunately, so are the resources on the Internet! So now it’s time to look at some large categories of information that you can monitor, from really broad, ...

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