The predictions of the always-on customers are materializing. Mobile continues to grow in acceptance, not only to search and research, but make purchases on the go. Most marketers know by now that mobile search is not the same as search on a PC or a laptop. Not optimizing Web sites for mobile search means the site will likely rank lower on the mobile search engine results page (SERP) queries. Scroll halfway down this post to discover how to optimize Web sites for compatibility using responsive design techniques, content optimization and other SEO strategies.