QUOTE(rimpy @ Mar 30 2012, 06:54 AM)
Selecting keywords and keyword phrases sounds like a simple task but the reality is that choosing the right keywords can be a challenge.
There are two main components to selecting good keywords, relevance and popularity. If you select a keyword or phrase that is highly relevant but is never searched on, you will not prosper. Conversely, if a word is incredibly popular but not relevant to your offerings you will not have a good conversion. So, while you might have web traffic, none of the traffic will be targeted. The key to selecting good keywords is striking a balance between relevance and popularity. The more relevant a term to your product or service offering, the more likely the website visitor will convert to a sale.
Generic keywords result in lots of impressions (views) but usually result in few click-throughs. More than that, generic keywords do not result in qualified traffic. Unqualified traffic is less likely to convert to a sale.
Keep in mind, keywords can vary based on the searchers age, culture, region, education or knowledge. In other words, you need to define your target audience, then select keywords or phrases your target audience would likely use when searching for your product or service. You may need to create multiple keyword groups to target different audiences or demographics.
Hey dude, you have already included most of the topic, related with SEO keyword. I want to add another thing that keyword should be unique because it helps to get more traffic and visitor. For example, if anyone want to do web design related job then he may select website design as his/her keyword, but we have a lots website who are doing the same job and using same keyword who have already got the top ranking. So, if he use the same keyword then it will be difficult for him to get top ranking in the search engine. Try to modify keyword.