Add David Medinets' articles.

doc/xdocs/articles.html

@@ -43,6 +43,15 @@
     <li><b><a href="http://jroller.com/page/paskos?entry=acegi_portable_independent_and_rich">Acegi: Portable, Independent and Rich Webapp Security</a></b>:
 		Pascal Gehl relates his experience in migrating from CMA to Acegi Security.<br><br>
 	</li>
+    <li><b><a href="http://affy.blogspot.com/2005/10/how-do-i-create-private-bean-using.html">Creating a private bean with Acegi</a></b>:
+		By David Medinets.<br><br>
+	</li>
+    <li><b><a href="http://affy.blogspot.com/2005/10/acegi-tutorial-example-of-method-based.html">Method based access control and JUnit for testing</a></b>:
+		By David Medinets.<br><br>
+	</li>
+    <li><b><a href="http://affy.blogspot.com/2005/10/acegi-example-of-when-to-use.html">Acegi: When to use AffirmativeBased voting</a></b>:
+		By David Medinets.<br><br>
+	</li>
     <li><b><a href="http://raibledesigns.com/page/rd/20050617#presentations_acegi_security_and_spring">Acegi Security High-Level Overview Presentation</a></b>:
 		Matt Raible has provided a nice <a href="http://www2.java.no/web/files/moter/mai05/AcegiSecurity.pdf">PDF presentation</a> comparing Acegi Security and J2EE CMA.<br><br>
 	</li>