Keyword research is critical to your online success, keywords or keyword phrases; these are the words that people are searching on the internet.
People surf the internet for information to solve a problem they might have or a need something they want, after all the www is commonly known as the information highway.
It is the words or phrases that people type into the search engine i.e. like Google, yahoo, bling.
For example they may have a problem with spots, so they may type in something like “spots” or “how do I get rid of spots” these are keywords or phrases, the latter known as “long tail” keywords these are more distinctive searches they know what they want to do and if your domain name and website content include these words and phrases, Google will rank you for these keyword terms.
Just remember that Google and the other search engine are like yourself they are providing a service, so if you have done your keyword research and incorporated these words and phrase into your website you will be found 
It is Important that you know you targeted market, like gender, age ect, so you can determine the language or lingo they speak, for example a teenager may type in “how do I get rid of spots” and adults may type in “how do I cure acne” they have the same problem but their search terms are different.
You can know see from that example how important it is to know your market and their keyword searches.
You maybe thinking how many keywords do I need, well the answer to that is not clear but if you use as a rule of thumb 100-200 keywords and phrases you can narrow them down to make them more laser targeted to your market or niche.
Now you have you list of keywords, you can think about a domain name which includes your main keyword Click Here for more info!
