diff --git a/readme.md b/readme.md
index dd9eeee..297d735 100644
--- a/readme.md
+++ b/readme.md
@@ -6,13 +6,12 @@ Sleutel is an identity directory aims to be the one-stop shop of all authenticat
 
 ## Protocols
 
-* [x] WebFinger
-* [ ] OpenID Connect
-* [ ] SAML 1.x
-* [ ] SAML 2
-* [ ] LDAP
-* [ ] RADIUS
+* [x] [WebFinger](https://webfinger.net/)
+* [ ] [OpenID](https://openid.net/)
+* [ ] [SAML 1.1](https://en.wikipedia.org/wiki/SAML_1.1)
+* [ ] [SAML 2](https://en.wikipedia.org/wiki/SAML_2.0)
+* [ ] [LDAP](https://en.wikipedia.org/wiki/Lightweight_Directory_Access_Protocol)
+* [ ] [RADIUS](https://en.wikipedia.org/wiki/RADIUS)
 * [ ] [IndieAuth](https://indieweb.org/IndieAuth)
-* [ ] Web Key Directory
+* [ ] [Web Key Directory](https://wiki.gnupg.org/WKD)
 * [ ] [libravatar](https://www.libravatar.org/)
-