diff --git a/eg/README.md b/eg/README.md
index 8231ef5..37c0139 100644
--- a/eg/README.md
+++ b/eg/README.md
@@ -5,16 +5,24 @@ In the [c64](c64/) directory are programs that run on the Commodore 64:
 
 *   [demo-game](c64/demo-game/): a little game-like program written as a
     "can we write something you'd see in practice?" test case for SixtyPical.
+    
 *   [ribos](c64/ribos/): a well-commented example of a C64 raster interrupt
-    routine. Originally written with the P65 assembler (now Ophis).
-    The second version of it has been translated to SixtyPical.
+    routine. Originally written with the P65 assembler (which has since
+    been reborn as [Ophis][]).
+    
+    The second version of Ribos has been translated to SixtyPical.
+    
 *   [petulant](c64/petulant/) -- "The PETulant Cursor", a tiny (44 bytes)
     "display hack". Originally written in the late 80's. Rewritten with
-    the P65 assembler (now Ophis) and re-released April 1, 2008 (a
-    hint as to its nature). Translated to SixtyPical, it's 48 bytes.
+    the P65 assembler (now Ophis) and re-released on April 1st, 2008 (a
+    hint as to its nature).
+    
+    Translated to SixtyPical (in 2018), it's 48 bytes.
 
 In the [rudiments](rudiments/) directory are programs which are not for
 any particular machine, but meant to demonstrate the features of SixtyPical.
 Some are meant to fail and produce an error message.  Others can run on
 any architecture where there is a routine at 65490 which outputs the value
 of the accumulator as an ASCII character.
+
+[Ophis]: http://michaelcmartin.github.io/Ophis/
diff --git a/eg/c64/README.md b/eg/c64/README.md
index 35f8fb2..a953e06 100644
--- a/eg/c64/README.md
+++ b/eg/c64/README.md
@@ -1,14 +1,5 @@
 This directory contains SixtyPical example programs
 specifically for the Commodore 64.
 
-Subdirectories of note:
-
-*   [demo-game](demo-game/): a little game-like program written as a
-    "can we write something you'd see in practice?" test case for SixtyPical.
-*   [ribos](ribos/): a well-commented example of a C64 raster interrupt
-    routine. Originally written with the P65 assembler (now Ophis).
-    The second version of it has been translated to SixtyPical.
-*   [petulant](petulant/) -- "The PETulant Cursor", a tiny (44 bytes)
-    "display hack". Originally written in the late 80's. Rewritten with
-    the P65 assembler (now Ophis) and re-released April 1, 2008 (a
-    hint as to its nature). Translated to SixtyPical, it's 48 bytes.
+See the [README in the parent directory](../README.md) for
+more information on these example programs.