Keyword research is the base for any good SEO campaign and a large amount of your success will be truly dependent on how well you did your keyword research. When you start you really want to think about your industry and use a top down approach to the seo keyword research and development. Keyword research is one of the most important, valuable, and high return activities in the search marketing field

the most basic and probably the first keyword research toll is in adwords itself. however you can use free keyword optimizer pro software for better research too.
if you want to pay try market samurai or keyword ninja. both are great

Hi

Keyword selection is very important to start SEO as this is what visitor put in the SE when looking for something.
Keywords should be searched in Broad Match +
It should not be too competitive to start with +
Always use keyword as per page
Never use a keyword twice in more than one page.

Thanks
Udit

Hi

Google tool for keyword research is very helpful as it delivers information very effectively which can be used to select appropriate keywords for the web page.

Thanks
ESTI

Keyword research is the basic process for better SEO. If you have got better keywords which are relevant to your websites then your website's PR will increase on search engines very fast. You have to perform Off page SEO tasks like directory submission, article submission, forum posting, social bookmarking and guest posting also.

Google Adword, Keyword Country and Word Tracker are good SEO tools for Keyword Research & analysis. Also choose low competitive keyword with high searches in the initial stage of SEO for a site.

keyword research is an overlooked part of the SEO process.Google Adword, is good SEO tools for Keyword Research & analysis.