Having a successful Search Engine Optimization (SEO) plan will definitely improve your websites visibility and sales (if you're an ecommerce). Higher impressions, more direct clicks, higher click through rates, and lower costs can all be achieved by fine tuning your SEO plan as much as possible. I'm a huge fan of Google so I'd highly recommend signing up for and using their Adwords program. Also, they offer excellent Customer Service/Site Reps that are highly knowledgeable and awesome to work with!

Check out the links below for tips and Q/As.

Cheers!