You may find this tutorial useful for first time researchers; for folks who use "Google" as their primary search engine could see googleguide as a first hand information for searching online.
GoogleGuide gives you an insight into how to use "words", abbreviations and syntax in a simple and right way to do simple searches.
Click here to see where GoogleGuide started?

Here is quick peek into something you might find interesting... (spare some time to read it .. ;)

Thanks to Nancy Blachman for this tutorial