I think your talking about embedding videos?
If you type in a link to a youtube or video you have stored on your
SharePoint site you get a very cool preview automatically generated
follow these steps:
You can embed videos from YouTube and similar services in a newsfeed
post. The process for doing this is similar to the one described above
for including links to Web pages. You paste a link to the video into
the post and optionally replace it with display text. A video
thumbnail appears in the post ready for you and others to run in a
1.Go to the video in its service and copy its URL to the clipboard.
2.In your newsfeed, paste the video URL into a new post, and press Enter.
You see a thumbnail for the video, and an option to format the video URL with display text.
3.If you want, type in display text for the video URL, and click the check mark.
4.Click Post to complete the newsfeed entry.