Google introduced its Go Mo service a few weeks ago, the purpose of which is to facilitate the work of the webmaster in testing the type of site on mobile browsers.
In pursuit of this, Google held a webinar on Making Mobile-Friendly Websites: Best Practices in Action , the materials of which are now available on the Internet. They are a fairly long presentation (almost 50 minutes), which lists "... 10 best practices for creating mobile sites ." Frankly, there is nothing new in the advice of Google experts, therefore, in my opinion, the main value of the material lies in its systematization, the presence of brilliantly illustrated examples and conciseness of presentation.
Video presentations (in English, of course, and the sound is not particularly pleased) ')