Transcription: In addition to the conventional indexes that include many different categories, there are a few indexes which concentrate specifically on a certain subject. For example, the GNN page contains a list of business sites on the web. Using these more focused tools can save you a lot of time and effort. On the other hand, since they are smaller, these indexes may not include all relevant sites. Now that you've learned how to use the menu-based strategy, it's time to study the keywords-based strategy. Click Next to continue.