Want to show off something about your business? Video is a great way to do it.
Aside from the common advice about, make it high quality, think twice before doing your own commercials, etc., the best way to put a video on your site is by using YouTube as embedded content. Not only is it guaranteed to have the broadest compatibility, but it is also another part of a great marketing plan.

Read more about YouTube marketing for small businesses at Mashable:
6 Best Practices for Small Business YouTube Marketing