I would make sure that my web site designer is well schooled in SEO. Now what does SEO do. well it does exactly what is says. it optimizes your web site tio rank well in search engine results for your keywords. Now the trick is to learn what seo techniques worlk right now and what ones dont. I suggest buying my brothers book at
http://seobook.com/ and read up on it. I cant tell you everything, cause i dont know them all....lol. read the forum here there are great posts throughout it.