Sure, it's easy to embed videos. Simply go to the video wherever you find it, youtube for example, and click the 'share' button, then get the code for embedding and sharing. When you come to post here on Openhandweb, simply click the >_ button in the grey bar of the comments box (far right), then post the code there. See below...

If you want to view before saving, or else add further commentary, click the >_ button once more and you'll see it embedded. Click save after completing the posting and all will be well.

Open