The Web is potentially a terrific place to get information on almost any topic.It's important to give some thought to your search strategy.If you're more interested in broad, general information, the first place to go is to a Web Directory. If you're after narrow, specific information, a Web search engine is probably a better choice.Enlisted here are a couple of strategies that are basically required to conduct a search on major Search engines.

1)Searching by Means of Subject Directories:If you are clear about the topic of your query, start with a Web directory rather than a search engine. Directories probably won't give you anywhere near as many references as a search engine will, but they are more likely to be on topic.Web directories usually come equipped with their own keyword search engines that allow you to search through their indices for the information you need.

2)Searching by Means of Search Engines:This is where things start to get complicated.Search engines are trickier than they look!If you understand how search engines organize information and run queries, you can maximize your chances of getting hits on URLs that matter.
And the last but not the least important things.Be specific in your search.Use proper keywords and meta tags.

Potentialy? It IS a great place to get information. I don't think you should mention use of directories for traffic. No one uses directories very much any more. The thing that directories are good for is PR and you get very little from that, so directories are basicly a waste of time(other than DMOZ )

Yeah that's right Directory is useless now Its Better to Make dofollow Blog comment and Social Bookmarking