diff --git a/platform/core-api/src/com/intellij/openapi/editor/Document.java b/platform/core-api/src/com/intellij/openapi/editor/Document.java
index 5257532829b6..67919ae958e7 100644
--- a/platform/core-api/src/com/intellij/openapi/editor/Document.java
+++ b/platform/core-api/src/com/intellij/openapi/editor/Document.java
@@ -32,7 +32,7 @@ import java.beans.PropertyChangeListener;
  * text editor. Line breaks in the document text are always normalized as single \n characters,
  * and are converted to proper format when the document is saved.
  * <p/>
- * Please see <a href="http://confluence.jetbrains.net/display/IDEADEV/IntelliJ+IDEA+Architectural+Overview">IntelliJ IDEA Architectural Overview </a>
+ * Please see <a href="https://www.jetbrains.org/intellij/sdk/docs/basics/architectural_overview.html">IntelliJ Platform Architectural Overview</a>
  * for high-level overview.
  *
  * @see Editor#getDocument()
diff --git a/platform/core-api/src/com/intellij/psi/FileViewProvider.java b/platform/core-api/src/com/intellij/psi/FileViewProvider.java
index 654c5b0b271b..dc20cfe53a79 100644
--- a/platform/core-api/src/com/intellij/psi/FileViewProvider.java
+++ b/platform/core-api/src/com/intellij/psi/FileViewProvider.java
@@ -32,7 +32,7 @@ import java.util.Set;
  * <p/>
  * Custom providers are registered via {@link FileViewProviderFactory}.
  * <p/>
- * Please see <a href="http://confluence.jetbrains.net/display/IDEADEV/IntelliJ+IDEA+Architectural+Overview">IntelliJ IDEA Architectural Overview </a>
+ * Please see <a href="https://www.jetbrains.org/intellij/sdk/docs/basics/architectural_overview.html">IntelliJ Platform Architectural Overview</a>
  * for high-level overview.
  *
  * @see PsiFile#getViewProvider()
diff --git a/platform/core-api/src/com/intellij/psi/PsiElement.java b/platform/core-api/src/com/intellij/psi/PsiElement.java
index 2beaf4a36685..7cb9b7a12984 100644
--- a/platform/core-api/src/com/intellij/psi/PsiElement.java
+++ b/platform/core-api/src/com/intellij/psi/PsiElement.java
@@ -35,7 +35,7 @@ import org.jetbrains.annotations.Nullable;
 /**
  * The common base interface for all elements of the PSI tree.
  * <p/>
- * Please see <a href="http://confluence.jetbrains.net/display/IDEADEV/IntelliJ+IDEA+Architectural+Overview">IntelliJ IDEA Architectural Overview </a>
+ * Please see <a href="https://www.jetbrains.org/intellij/sdk/docs/basics/architectural_overview.html">IntelliJ Platform Architectural Overview</a>
  * for high-level overview.
  */
 public interface PsiElement extends UserDataHolder, Iconable {
diff --git a/platform/core-api/src/com/intellij/psi/PsiFile.java b/platform/core-api/src/com/intellij/psi/PsiFile.java
index 131ec416950b..9a37a1f6bb01 100644
--- a/platform/core-api/src/com/intellij/psi/PsiFile.java
+++ b/platform/core-api/src/com/intellij/psi/PsiFile.java
@@ -23,7 +23,7 @@ import org.jetbrains.annotations.NotNull;
 /**
  * A PSI element representing a file.
  * <p/>
- * Please see <a href="http://confluence.jetbrains.net/display/IDEADEV/IntelliJ+IDEA+Architectural+Overview">IntelliJ IDEA Architectural Overview </a>
+ * Please see <a href="https://www.jetbrains.org/intellij/sdk/docs/basics/architectural_overview.html">IntelliJ Platform Architectural Overview</a>
  * for high-level overview.
  *
  * @see com.intellij.openapi.actionSystem.LangDataKeys#PSI_FILE