Yammer is a Twitter clone for companies. The service works for users under a single company domain, and provides a combination of microblogging and presence/status information following in the footsteps of ervices like Twitter, Facebook, and LinkedIn.

1. Sign Up.
2. Home page and content entry screen.
3. Updates are shown immediately in the page.
4. Clicking a hashtag displays only entries with that tag applied.
5. Member listing.
6. Tag listing.