diff --git a/pkg/dev_compiler/README.md b/pkg/dev_compiler/README.md
index ea460c050c5..1a9e625e29e 100644
--- a/pkg/dev_compiler/README.md
+++ b/pkg/dev_compiler/README.md
@@ -2,9 +2,9 @@ The Dart Dev Compiler (DDC) is a fast, modular compiler that generates modern Ja
 
 # Soundness and Restrictions
 
-DDC is built upon Dart's [sound](https://www.dartlang.org/guides/language/sound-dart) type system.  It only compiles programs that statically type check (i.e., no strong mode errors).  It leverages static type checking to generate simpler, readable, and more idiomatic code with fewer runtime checks.  In general, DDC is able to provide stronger type guarantees - i.e., *soundness* - than traditional Dart checked mode with significantly fewer runtime checks.
+DDC is built upon Dart's [sound](https://dart.dev/guides/language/type-system) type system.  It only compiles programs that statically type check (i.e., no strong mode errors).  It leverages static type checking to generate simpler, readable, and more idiomatic code with fewer runtime checks.  In general, DDC is able to provide stronger type guarantees - i.e., *soundness* - than traditional Dart checked mode with significantly fewer runtime checks.
 
-With strong mode, DDC is stricter than traditional Dart production mode or checked mode.  Running existing Dart code on DDC will generally require fixing both static and runtime type errors.  
+With strong mode, DDC is stricter than traditional Dart production mode or checked mode.  Running existing Dart code on DDC will generally require fixing both static and runtime type errors.
 
 For example, although the following snippet will run in production or checked mode, it will fail to compile with DDC:
 
diff --git a/pkg/dev_compiler/USAGE.md b/pkg/dev_compiler/USAGE.md
index ccdf8aac192..e2f0b69fd3b 100644
--- a/pkg/dev_compiler/USAGE.md
+++ b/pkg/dev_compiler/USAGE.md
@@ -79,6 +79,3 @@ change. If you find issues, please let us know.
 
 Please file issues in our [GitHub issue
 tracker](https://github.com/dart-lang/sdk/issues).
-
-You can also view or join our [mailing
-list](https://groups.google.com/a/dartlang.org/forum/#!forum/dev-compiler).
diff --git a/pkg/dev_compiler/doc/STATIC_SAFETY.md b/pkg/dev_compiler/doc/STATIC_SAFETY.md
index 8cddbf55b3e..9201c3302ee 100644
--- a/pkg/dev_compiler/doc/STATIC_SAFETY.md
+++ b/pkg/dev_compiler/doc/STATIC_SAFETY.md
@@ -54,7 +54,7 @@ analyzer:
 
 With strong mode, we want to provide stronger typing while preserving the
 terseness of Dart. [Idiomatic Dart
-code](https://www.dartlang.org/effective-dart/) discourages type annotations
+code](https://dart.dev/guides/language/effective-dart) discourages type annotations
 outside of API boundaries, and user shouldn't have to add more types to get
 better checking. Instead, strong mode uses type inference.
 
@@ -443,7 +443,7 @@ main() {
 }
 ```
 
-This option is experimental and may be changed or removed in the future. Feedback is appreciated! Contact us at our [mailing list](https://groups.google.com/a/dartlang.org/forum/#!forum/dev-compiler).
+This option is experimental and may be changed or removed in the future.
 Try it out in your project by editing .analysis_options:
 
 ```yaml
@@ -505,7 +505,7 @@ class C extends Iterable<dynamic> { /* ... */ }
 
 This feature is to prevent accidental use of `dynamic` in code that does not intend to use it.
 
-This option is experimental and may be changed or removed in the future. Feedback is appreciated! Contact us at our [mailing list](https://groups.google.com/a/dartlang.org/forum/#!forum/dev-compiler).
+This option is experimental and may be changed or removed in the future.
 Try it out in your project by editing .analysis_options:
 
 ```yaml
@@ -527,4 +527,4 @@ dartanalyzer --strong --no-implicit-dynamic my_app.dart
 `is` and `as` checks trigger runtime errors.  We are considering introducing static
 errors for these cases.
 
-[dartspec]: https://www.dartlang.org/docs/spec/ "Dart Language Spec"
+[dartspec]: https://dart.dev/guides/language/spec "Dart Language Spec"