In this week’s WebAgency search and social news roundup, Google releases an image-driven “stories” format, Bing tests stacked sitelinks and more.

• Google Gets In on Mobile ‘Story Craze’ with New AMP Stories Format (Search Engine Land)
• Bing Testing Stacked Sitelinks in Search Results (The SEM Post)
• How Will Mobile Page Speed Impact Your Google Rankings & UX? (Search Engine Journal)
• 8 Tips for Boosting the Speed of Your WordPress Site (Search Engine Watch)