diff --git a/index.md b/index.md
index 372068b..61cb824 100644
--- a/index.md
+++ b/index.md
@@ -5,7 +5,9 @@ These all work with at least [nvi](https://en.wikipedia.org/wiki/Nvi) 1.79 and 2
Helpful documents:
- [Roman Zolotarev: Edit text with vi(1)](https://rgz.ee/vi.html)
-- [Jeff W: vi help](http://www.jeffw.com/vi/vi_help.txt)
+- [Jeff W: vi help](http://www.jeffw.com/vi/vi_help.txt)
+- [ViEmu: Graphical vi cheatsheet](http://www.viemu.com/a_vi_vim_graphical_cheat_sheet_tutorial.html)
+
#### Yank / delete an arbitrary number of lines
1) mark the first line: mk