When I refer to SharePoint I am referring to both Windows SharePoint Services 3.0 (WSS 3.0) and Microsoft Office SharePoint Server (MOSS 2007). SharePoint is often thought of as an intranet portal. However, many public web sites are now powered by SharePoint. One compelling reason for this is the powerful publishing capabilities built into MOSS 2007 Enterprise. Furthermore, it is much easier to brand sites in the latest versions of SharePoint then previous versions. SharePoint know leverages masterpages introduced is ASP.NET 2.0 and CSS which have reduced the number of required file modifications to brand a site. The following are several custom branded SharePoint Sites.
http://www.glu.com/noram/Pages/home.aspx
http://www.hawaiianair.com/Pages/Index.aspx
http://www.lodgenet.com
http://www.migros.ch/DE/home/Seiten/Home.aspx
http://www.nspi.com/Pages/Home.aspx