diff --git a/GPG.md b/GPG.md
index 471ba99..e5e0427 100644
--- a/GPG.md
+++ b/GPG.md
@@ -4,4 +4,7 @@
   - `notation` to enter the add/remove something mode
   - add `-` to remove the thing
 - Save: `save`
-- Update key to remote: `gpg --keyserver hkps://keys.openpgp.org --send-keys <key>`
\ No newline at end of file
+- Update key to remote: `gpg --keyserver hkps://keys.openpgp.org --send-keys <key>`
+
+- [Add email](https://security.stackexchange.com/a/261468)
+- [Remove email](https://infertux.com/posts/2013/11/03/how-to-remove-an-email-address-from-a-gpg-key/)