diff --git a/boards/models.py b/boards/models.py
--- a/boards/models.py
+++ b/boards/models.py
@@ -63,16 +63,16 @@ class PostManager(models.Manager):
         for post in posts:
             self.delete_post(post)
 
-    def get_threads(self, tag=None, page=ALL_PAGES):
+    def get_threads(self, tag=None, page=ALL_PAGES,
+                    order_by='-last_edit_time'):
         if tag:
             threads = self.filter(parent=NO_PARENT, tags=tag)
+
+            # TODO Throw error 404 if no threads for tag found?
         else:
             threads = self.filter(parent=NO_PARENT)
 
-        if not threads:
-            raise Http404
-
-        threads = threads.order_by('-last_edit_time')
+        threads = threads.order_by(order_by)
 
         if page != ALL_PAGES:
             thread_count = len(threads)