Update Readme
diff --git a/README.md b/README.md
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--- a/README.md
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@@ -99,10 +99,13 @@
#### Testing
See the pom.xml file for test dependencies.
-## Resources
+## How to Contact Us
+* We have two ASF [the-ASF.slack.com](http://the-ASF.slack.com) slack channels:
+ * datasketches -- general user questions
+ * datasketches-dev -- similar to our Apache [Developers Mail list](https://lists.apache.org/list.html?dev@datasketches.apache.org), except more interactive, but not as easily searchable.
-### [Issues for datasketches-memory](https://github.com/apache/incubator-datasketches-memory/issues)
+* For bugs and performance issues please subscribe: [Issues for datasketches-memory](https://github.com/apache/incubator-datasketches-memory/issues)
-### [Forum](https://groups.google.com/forum/#!forum/sketches-user)
+* For general questions about using the library please subscribe: [Users Mail List](https://lists.apache.org/list.html?users@datasketches.apache.org)
-### [Dev mailing list](dev@datasketches.apache.org)
+* If you are interested in contributing please subscribe: [Developers Mail list](https://lists.apache.org/list.html?dev@datasketches.apache.org)
