Index: share/man/man4/stf.4
===================================================================
--- share/man/man4/stf.4
+++ share/man/man4/stf.4
@@ -57,7 +57,7 @@
 interface.
 The
 .Nm
-interface is necessary for site border router
+interface is necessary for site border routers
 (called
 .Dq 6to4 router
 or
@@ -306,8 +306,6 @@
 .Xr gif 4 ,
 .Xr inet 4 ,
 .Xr inet6 4
-.Pp
-.Pa http://www.ipv6day.org/action.php?n=En.IPv6day
 .Rs
 .%A Brian Carpenter
 .%A Keith Moore