A hideous website with good content may be regarded less than a well-designed website with not-as-good content, thereby affecting social media optimization in that people will not want to reference your aesthetically-unpleasing and not-very-usable website.
A collection of the best Internet Marketing Posts of 2006 in SEO, Link Building, Site Usability, Social Networking, Blogging, Copywriting, PPC/Adsense, and Search Engines.