SharePoint 2013 makes branding, mobile optimization, and search engine optimization easier. It streamlines the branding process, allows serving different pages to mobile devices based on their characteristics, and includes features like XML sitemaps, friendly URLs, and robots.txt support to define non-indexed areas that enhance SEO. Market research also shows content marketing increases brand awareness while mobile traffic and sales are significant and growing, highlighting reasons to upgrade to SharePoint 2013 to keep up with these trends.