Summary: <p>This week's digital marketing news: YouTube changes how they handle age-restricted content, Ahrefs nails it with new Webmaster Tools, Google makes enhancements to local ads, and the LinkedInterface gets a facelift. YouTube changes how they handle age-restricted content, Ahrefs nails it with new Webmaster Tools, Google makes enhancements to local ads, and the LinkedInterface gets a facelift.</p>