As a professional AdWords account manager and expert in Search Engine Optimization, I do recommend that the focus of keywords be different for your website optimization versus what you use for pay per click.
Personally, I like a very narrow set of very tightly targeted keywords for AdWords; as we are typically driving traffic for lead generation. Our top focus is cost per conversion and increasing leads.
For organic, I like to focus on keywords that have the most click activity and may be more general yet still industry specific. I find that the balance helps sites to drive more site visits and leads and is not redundant with the specificity we use for AdWords.
For example, for a client selling warehouse equipment, in AdWords I might target very tight product names and categories like Forklift model 45S, powered warehouse equipment, and other specific keywords.
In organic I might target material handling equipment and material handling equipment supplier as my focus for blog writing and social media; striving to cast the net farther and wider but for high click volume keywords.
When every click you pay for in AdWords must make a difference in growing your business, you have to be narrow and very results oriented. In organic where you do not pay by the click the effort should be to enhance website traffic that is free.
If you need help adjusting your strategies to make the most of your ad spend and drive traffic and build inbound links, visit www.McCordWeb.com to see how we can help you too.