diff --git a/src/bootstrap.rkt b/src/bootstrap.rkt
index fe5506b..fe8ac4e 100644
--- a/src/bootstrap.rkt
+++ b/src/bootstrap.rkt
@@ -85,11 +85,7 @@
                             ,(bootstrap-project-name))))
 		(div ((id "navbar") (class "collapse navbar-collapse"))
 		     (ul ((class "nav navbar-nav"))
-			 ,@(for/list ((n (bootstrap-navigation)))
-			     (match-define (list text url) n)
-			     `(li ,@(maybe-splice (equal? text (bootstrap-active-navigation))
-                                                  `((class "active")))
-				  (a ((href ,url)) ,text))))
+                         ,@(render-nav-items (bootstrap-navigation)))
                      ,@(bootstrap-navbar-extension)
                      )))
       (div ((class "container"))
@@ -105,6 +101,28 @@
       ,@(for/list ((script (bootstrap-page-scripts)))
           `(script ((type "text/javascript") (src ,script))))))))
 
+(define (render-nav-items items)
+  (for/list ((n items))
+    (match n
+      [(list text (? string? url))
+       `(li ,@(maybe-splice (equal? text (bootstrap-active-navigation))
+                            `((class "active")))
+            (a ((href ,url)) ,text))]
+      ['separator
+       `(li ((role "separator") (class "divider")))]
+      [(list text (? list? subitems))
+       `(li ((class "dropdown"))
+            (a ((href "#")
+                (class "dropdown-toggle")
+                (data-toggle "dropdown")
+                (role "button")
+                (aria-haspopup "true")
+                (aria-expanded "false"))
+               ,text
+               (span ((class "caret"))))
+            (ul ((class "dropdown-menu"))
+                ,@(render-nav-items subitems)))])))
+
 ;; String [#:permanent? Boolean] [#:headers (Listof Header)] -> Response
 (define (bootstrap-redirect url
                             #:permanent? [permanent? #f]
diff --git a/src/site.rkt b/src/site.rkt
index 35368e2..7876495 100644
--- a/src/site.rkt
+++ b/src/site.rkt
@@ -126,14 +126,18 @@
 
 (define-syntax-rule (with-site-config body ...)
   (parameterize ((bootstrap-navbar-header (navbar-header))
-                 (bootstrap-navigation `((,nav-index ,(main-page-url))
-                                         (,nav-search ,(named-url search-page))
-                                         ("About Package Builds" "https://pkg-build.racket-lang.org/about.html")
-                                         ("Documentation" "https://docs.racket-lang.org/")
-                                         ((div ,(glyphicon 'download-alt)
-                                               " Download Racket")
-                                          "http://download.racket-lang.org/")
-                                         ))
+                 (bootstrap-navigation
+                  `((,nav-index ,(main-page-url))
+                    ("Documentation" "https://docs.racket-lang.org/")
+                    (,nav-search ,(named-url search-page))
+                    ("About"
+                     (("The Racket Package System"
+                       "http://docs.racket-lang.org/pkg/getting-started.html")
+                      ("Package Builds" "https://pkg-build.racket-lang.org/about.html")))
+                    ((div ,(glyphicon 'download-alt)
+                          " Download Racket")
+                     "http://download.racket-lang.org/")
+                    ))
                  (bootstrap-static-urlprefix
                   (if (rendering-static-page?)
                       static-urlprefix