diff --git a/project.xml b/project.xml
index eb5e6a8..b16c39e 100644
--- a/project.xml
+++ b/project.xml
@@ -181,6 +181,7 @@
       <groupId>log4j</groupId>
       <artifactId>log4j</artifactId>
       <version>1.2.12</version>
+      <url>http://logging.apache.org/log4j/docs/index.html</url>
       <properties>
         <comment>
 Runtime Optional. 
@@ -192,6 +193,7 @@ Runtime Optional.
       <groupId>logkit</groupId>
       <artifactId>logkit</artifactId>
       <version>1.0.1</version>
+      <url>http://avalon.apache.org/logkit/</url>
       <properties>
         <comment>Runtime Optional</comment>
       </properties>
@@ -201,6 +203,7 @@ Runtime Optional.
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
       <version>3.8.1</version>
+      <url>http://www.junit.org/index.htm</url>
       <properties>
         <comment>Used for testing only.</comment>
         <scope>test</scope>
@@ -211,6 +214,7 @@ Runtime Optional.
       <groupId>avalon-framework</groupId>
       <artifactId>avalon-framework</artifactId>
       <version>4.1.3</version>
+      <url>http://avalon.apache.org/</url>
       <properties>
         <comment>Runtime Optional</comment>
       </properties>
@@ -220,6 +224,7 @@ Runtime Optional.
       <groupId>javax.servlet</groupId>
       <artifactId>servlet-api</artifactId>
       <version>2.3</version>
+      <url>http://java.sun.com/products/servlet/</url>
       <properties>
         <comment>Used only by servlet filter. Not used by core logging implementation.</comment>
       </properties>