Ahhh, the long-tail keyword—what is it? For the layperson (i.e. you, your mom, a neighbour or the frantic student who waited until the last minute to do his book report) a long-tail keyword is usually an exact phrase of three to six words, to describe what you are searching for.
For the business owner, it’s a gold mine! Let me explain. In the early years of the Internet, if you were specific in your search, your young, immature search engine would cough up a few results, followed by a suggestion to widen your search for more results.