Index: src/main/java/org/apache/maven/plugin/idea/IdeaModuleMojo.java
===================================================================
--- src/main/java/org/apache/maven/plugin/idea/IdeaModuleMojo.java	(revision 452786)
+++ src/main/java/org/apache/maven/plugin/idea/IdeaModuleMojo.java	(working copy)
@@ -76,6 +76,15 @@
      * @parameter expression="${linkModules}" default-value="true"
      */
     private boolean linkModules;
+    
+     /**
+     * Whether to exclude certain reactor projects from inclusion as dependency modules.
+     *
+     * Default is empty, comma-seperated list of modules which should be excluded (they will be linked as jar-libraries instead).
+     *
+     * @parameter expression="${linkModulesExcept}" default-value=""
+     */
+    private String linkModulesExcept;       
 
     /**
      * @parameter expression="${deploymentDescriptorFile}"
@@ -168,7 +177,7 @@
     public void initParam( MavenProject project, ArtifactFactory artifactFactory, ArtifactRepository localRepo,
                            ArtifactResolver artifactResolver, ArtifactMetadataSource artifactMetadataSource, Log log,
                            boolean overwrite, MavenProject executedProject, List reactorProjects,
-                           WagonManager wagonManager, boolean linkModules, boolean useFullNames,
+                           WagonManager wagonManager, boolean linkModules, String linkModulesExcept, boolean useFullNames,
                            boolean downloadSources, String sourceClassifier, boolean downloadJavadocs,
                            String javadocClassifier, Library[] libraries, Set macros, String exclude,
                            boolean useShortDependencyNames )
@@ -181,6 +190,8 @@
         this.wagonManager = wagonManager;
 
         this.linkModules = linkModules;
+        
+        this.linkModulesExcept = linkModulesExcept;        
 
         this.useFullNames = useFullNames;
 
@@ -457,7 +468,8 @@
             }
 
             boolean isIdeaModule = false;
-            if ( linkModules )
+            
+            if ( linkModules && linkingAllowed(moduleName))
             {
                 isIdeaModule = isReactorProject( a.getGroupId(), a.getArtifactId() );
 
@@ -578,7 +590,8 @@
 
             Element containerElement = createElement( component, "containerElement" );
 
-            if ( linkModules && isReactorProject( artifact.getGroupId(), artifact.getArtifactId() ) )
+            if ( linkModules && isReactorProject( artifact.getGroupId(), artifact.getArtifactId() ) 
+              && linkingAllowed(artifact.getArtifactId()))
             {
                 containerElement.addAttribute( "type", "module" );
                 containerElement.addAttribute( "name", artifact.getArtifactId() );
@@ -728,7 +741,8 @@
 
             Element containerElement = createElement( component, "containerElement" );
 
-            if ( linkModules && isReactorProject( artifact.getGroupId(), artifact.getArtifactId() ) )
+            if ( linkModules && isReactorProject( artifact.getGroupId(), artifact.getArtifactId() ) 
+              && linkingAllowed(artifact.getArtifactId()))
             {
                 containerElement.addAttribute( "type", "module" );
                 containerElement.addAttribute( "name", artifact.getArtifactId() );
@@ -764,6 +778,24 @@
         element.addAttribute( "relative", "/" );
         element.addAttribute( "url", getModuleFileUrl( warSrc ) );
     }
+    
+    private boolean linkingAllowed(String name)
+    {
+        if(linkModulesExcept == null)
+            return true;
+ 
+        String[] moduleNames = linkModulesExcept.split(",");
+ 
+        for (int i = 0; i < moduleNames.length; i++)
+        {
+            String moduleName = moduleNames[i];
+            if(moduleName.trim().equals(name))
+                return false;
+        }
+ 
+        return true;
+    }
+     
 
     /**
      * Translate the relative path of the file into module path
@@ -929,4 +961,4 @@
 
         return deploymentDescriptor;
     }
-}
\ No newline at end of file
+}
Index: src/main/java/org/apache/maven/plugin/idea/IdeaMojo.java
===================================================================
--- src/main/java/org/apache/maven/plugin/idea/IdeaMojo.java	(revision 452786)
+++ src/main/java/org/apache/maven/plugin/idea/IdeaMojo.java	(working copy)
@@ -56,6 +56,15 @@
      * @parameter expression="${linkModules}" default-value="true"
      */
     private boolean linkModules;
+    
+     /**
+     * Whether to exclude certain reactor projects from inclusion as dependency modules.
+     *
+     * Default is empty, comma-seperated list of modules which should be excluded (they will be linked as jar-libraries instead).
+     *
+     * @parameter expression="${linkModulesExcept}" default-value=""
+     */
+    private String linkModulesExcept;     
 
     /**
      * Whether to use full artifact names when referencing libraries.
@@ -198,7 +207,7 @@
         IdeaModuleMojo mojo = new IdeaModuleMojo();
 
         mojo.initParam( executedProject, artifactFactory, localRepo, artifactResolver, artifactMetadataSource, getLog(),
-                        overwrite, executedProject, reactorProjects, wagonManager, linkModules, useFullNames,
+                        overwrite, executedProject, reactorProjects, wagonManager, linkModules, linkModulesExcept, useFullNames,
                         downloadSources, sourceClassifier, downloadJavadocs, javadocClassifier, libraries, macros,
                         exclude, dependenciesAsLibraries );