If you're creating videos, hosting them on your website, and
aim to optimize those videos for competitive search engine placement you'll want
to pay attention to this one.
Google today announced support for Facebook Share and Yahoo! SearchMonkey
RDFa for videos.
These markup formats (micro-formats) allow you to specify
information (like titles, descriptions and even preview images) about videos and
potentially influence how they are indexed - although it's doubtful that videos
utilizing this technique will be given preferential treatment. While Google does
pretty well at discovering this information by itself as it stands today, using these
format structures enables you to give them some help and guidance.
Google has advised that to maximize the chances they find the right markup on
your video pages, you should check to ensure it appears in the HTML without the
The following is some example code provided by Google on how to use both
Facebook Share and the SearchMonkey RDFa for videos:
RDFa (Yahoo! SearchMonkey):