We know that some of you, or your clients or colleagues, may be new to online video publishing. To make it easier for everyone to understand video indexing and Video Sitemaps, Google created a video — narrated by Nelson Lee, Video Search Product Manager — that explains everything in basic terms:
So to help beginners better understand the whys and hows of implementing a Video Sitemap, they added a starting page to the information on Video Sitemaps in the Webmaster Help Center. Please take a look and share your thoughts.