Maile Ohye, Developer Programs Tech Lead of Google´s webmasters support team, released several videos for mobile website improvement. Google has in addition put out a mobile checklist to understand how to go about making your websites more friendly for smartphone users.
Maile goes over several issues, from “stop frustrating your customers”, Mobile loading Speed, to verifying your mobile site on Google Webmaster Tools.
Optimize the top mobile tasks on your site
Improving high-traffic, poor user-experience mobile pages
Quick fixes in mobile website performance
