### Zulip
-[Zulip](https://zulip.com/zephyr) is a web-based Zephyr client that also provides [mobile apps](https://zephyr.zulip.com/apps) for Android and iOS and desktop apps for Linux, Mac, and Windows. Zulip is developed by a company composed largely of MIT alums and SIPB members.
+[Zulip](https://zulipchat.com/zephyr) ([source code](https://github.com/zulip/zulip)) is a web-based Zephyr client that also provides [mobile apps](https://zephyr.zulipchat.com/apps) for Android and iOS and desktop apps for Linux, Mac, and Windows. Zulip is developed by a company composed largely of MIT alums and SIPB members.
Zulip, like Roost, is easy to set up because it uses Webathena for authentication.
-See [Zulip for MIT setup](http://zulip.com/zephyr) for details.
+See [Zulip for MIT setup](http://zulipchat.com/zephyr) for details.
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