The best way to write whether for online media or print media is to through the mind of your reader or audience to convey the right message. Mostly in case SME (Small and medium enterprises) an owner fails to recognize his potential clientele or current customers.
You can advertise your business through a good number of website designing companies, but most important how a designing company as a consultant recognizes your potential of your company and domain you are working into and whether is capable of transforming that into a better copy assembling all the important points from your business.
So before getting straight into the business of developing content you prior search for a person who specializes in web content creation, editing and copy writing. This person can help you in getting better advertising copy for your website.