This topic shows you

• What is keyword?


• How to choose and use keyword
  

Keyword has no specific definition but You can say that
"A keyword is the key topic about the website or blog that you are using".
A keyword tells other people or Search engine that on which topic your site depends on.


Before making a site please research the keyword,Because if you go right you can make huge money but if you go wrong this all will be a waste of time.
Now there are a good numbers of keyword research tools that provide you each and every thing about a keyword some of them are free some of them are paid tools

FREE tools

1. Google adwords keyword tool(https://adwords.google.com/select/KeywordToolExternal)
2. Wordtracker free keyword suggestion tool(http://freekeywords.wordtracker.com/)
3. Word stream keyword tool(http://www.wordstream.com/keywords/)

Paid Tools

1. Wordtracker(http://www.Wordtracker.com)
2. keyword country(http://www.keywordcountry.com)
3. Keyword spy(http://www.keywordSpy.com)

You can use any of these keywords for a good research tool
Now for under standing a keyword has following things
These tool will help you to choose a niche keyword to boost your earnings
in above line you read a word "Niche",What is that??
you have heard it on many places
So here is a correct and very good definition about niche
NICHE:An search engine advertising company(Adsense etc) when cannot generate traffic on such keyword,It makes very difficult to have its correct advertising budget of advertisers,Thus instead of sharing the high paying ads of top companies with high ranked sites,The search engines shares these ads with you,Whatever your rating/ranking is.
Therefor every thing talks about choosing a niche keyword.
Here are more subtopics in a keyword:
CPC(Cost per click):Its the most important and the first part of keyword,When you think of using a keyword,the first thing you think that "What amount i will be paid on each click!!!".Its basically the amount that an advertiser is paying for each valid click on the adsense ad,Remember its not the only thing which will pay you,Its just small part of a keyword.Now there are some questions that you should answer to yourself of CPC

• What will happens if your keyword has no advertiser behind it,It's like that "a car has no fuel it it and you suppose to run that car at 200mph" Is that possible? ask your self.
• If search engine is paying all the profit to high seo sites,What will be left to you? ask your self.

Those are two most important that every one does not thinks about,
"Remember High CPC does not mean that you will be paid the most"
So advertisers are most important part of it.
Advertisers: now you have an idea that what is cpc,The second thing is a cpc should have sponsors behind it,means somone should Bid for it like "I will also pay the specified host for clicking ads".So when choosing keyword you should know that there are a good number of sponsors behind it.If you choose a key like "Health is very good for us",this keyword probably have no one bidding for it.So it means that high number of sponsors means high per click earnings.

Clicks:The third thing when choosing the keyword is you should see that if number of clicks are less then just ignore those ads,But if you see that per month clicks are average but advertisers are good ,that one is most profitable keyword for you.

KEI(keyword effectiveness index):The most important part for seo.Whe you research for a key word,Do take in notice of the KEI.A KEI basically a formula that analyses the number of searches and competition that if number of searches increase then KEI increase and decreases with more competition,So a keyword with the HIGH KEI is more profitable,Because it has low competition and large number of search and,By using the high KEI keyword you have a very good chance of getting at the top of the list by search engines.


Now the next thing is how to choose a keyword
open google adword keyword tool its looks like this

Put your master keyword in it
Fill the capcha
Click get keyword ideas
A report like this will be shown

This is a report for the keyword "Health" as you can see on the top in 2nd column some keywords has green bar filled this shows the high competetion of advertisers,So avoid using the keywords which has a red box around it and relitavely the keywords wth green boxes have a good competition too.If if you choose these keywords you have a better chance of getting a goof rank.
So whats the Summary
A Niche keyword has following things

1. Good CPC(Cost per click)
2. Good number of sponsors(Very good if keyword has 25 to upwards)
3. Not a high competition(Better chances that top level for you)
4. Good KEI(Better chances of rank well in listing)

Work for you
Don't choose keywords like finance,money,health because your site will not be ranked well
Choose relative keywords like health solution(Specified)
Do not over use the keyword