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.
