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@@ -85,10 +85,11 @@ Host in Beijing. Go to [demo](http://122.112.182.72:8080).
 Follow this [document](docs/en/guides/How-to-build.md).
 
 # Contact Us
-* Submit an [issue](https://github.com/apache/skywalking/issues)
 * Mail list: **dev@skywalking.apache.org**. Mail to `dev-subscribe@skywalking.apache.org`, follow the reply to subscribe the mail list.
 * Join `skywalking` channel at [Apache Slack](https://join.slack.com/t/the-asf/shared_invite/enQtNzc2ODE3MjI1MDk1LTAyZGJmNTg1NWZhNmVmOWZjMjA2MGUyOGY4MjE5ZGUwOTQxY2Q3MDBmNTM5YTllNGU4M2QyMzQ4M2U4ZjQ5YmY). If the link is not working, find the latest one at [Apache INFRA WIKI](https://cwiki.apache.org/confluence/display/INFRA/Slack+Guest+Invites).
-* QQ Group: 392443393(2000/2000, not available), 901167865(available)
+* Twitter, [ASFSkyWalking](https://twitter.com/ASFSkyWalking)
+* QQ Group: 901167865(Recommended), 392443393
+* [bilibili B站 视频](https://space.bilibili.com/390683219)
 
 # Who Uses SkyWalking?
 Hundreds of companies and organizations use SkyWalking for research, production, and commercial product.