diff --git a/content_gospel/evangelium-teutonicum.mkd b/content_gospel/apocrypha/evangelium-teutonicum.mkd
similarity index 100%
rename from content_gospel/evangelium-teutonicum.mkd
rename to content_gospel/apocrypha/evangelium-teutonicum.mkd
diff --git a/content_gospel/apocrypha/index.mkd b/content_gospel/apocrypha/index.mkd
new file mode 100644
index 0000000..2809d9c
--- /dev/null
+++ b/content_gospel/apocrypha/index.mkd
@@ -0,0 +1,6 @@
+---
+title: Apocrypha
+is_category: true
+---
+
+<%= category :apocrypha %>
diff --git a/content_gospel/gospel.mkd b/content_gospel/heresy/gospel.mkd
similarity index 100%
rename from content_gospel/gospel.mkd
rename to content_gospel/heresy/gospel.mkd
diff --git a/content_gospel/heresy/index.mkd b/content_gospel/heresy/index.mkd
new file mode 100644
index 0000000..d8d6658
--- /dev/null
+++ b/content_gospel/heresy/index.mkd
@@ -0,0 +1,6 @@
+---
+title: Heresy
+is_category: true
+---
+
+<%= category :heresy %>
diff --git a/content_gospel/sayings.mkd b/content_gospel/heresy/sayings.mkd
similarity index 100%
rename from content_gospel/sayings.mkd
rename to content_gospel/heresy/sayings.mkd
diff --git a/content_gospel/sermon-of-peter.mkd b/content_gospel/heresy/sermon-of-peter.mkd
similarity index 100%
rename from content_gospel/sermon-of-peter.mkd
rename to content_gospel/heresy/sermon-of-peter.mkd
diff --git a/content_gospel/super/index.mkd b/content_gospel/super/index.mkd
new file mode 100644
index 0000000..1892f2a
--- /dev/null
+++ b/content_gospel/super/index.mkd
@@ -0,0 +1,6 @@
+---
+title: Super-Texts
+is_category: true
+---
+
+<%= category :super %>
diff --git a/content_gospel/mark.mkd b/content_gospel/super/mark.mkd
similarity index 100%
rename from content_gospel/mark.mkd
rename to content_gospel/super/mark.mkd
diff --git a/lib/meta.rb b/lib/meta.rb
index 81d3a4c..28636fa 100644
--- a/lib/meta.rb
+++ b/lib/meta.rb
@@ -25,6 +25,14 @@ def poem &block
   end
 end
 
+# interpolations; highlight them
+def interpolation &block
+  annotate block do |c|
+    div_wrap :interpolation, c
+  end
+end
+
+
 def annotate content, &filter
   # get erbout so far
   erbout = eval('_erbout', content.binding)