diff --git a/plugins/Hashes/plugin.py b/plugins/Hashes/plugin.py
index 67194775e..40a93eecb 100644
--- a/plugins/Hashes/plugin.py
+++ b/plugins/Hashes/plugin.py
@@ -47,9 +47,7 @@ class Hashes(callbacks.Plugin):
     def md5(self, irc, msg, args, text):
         """<text>
 
-        Returns the md5 hash of a given string.  Read
-        http://www.rsasecurity.com/rsalabs/faq/3-6-6.html for more information
-        about md5.
+        Returns the md5 hash of a given string.
         """
         irc.reply(hashlib.md5(text.encode('utf8')).hexdigest())
     md5 = wrap(md5, ['text'])
@@ -58,9 +56,7 @@ class Hashes(callbacks.Plugin):
     def sha(self, irc, msg, args, text):
         """<text>
 
-        Returns the SHA hash of a given string.  Read
-        http://www.secure-hash-algorithm-md5-sha-1.co.uk/ for more information
-        about SHA.
+        Returns the SHA1 hash of a given string.
         """
         irc.reply(hashlib.sha1(text.encode('utf8')).hexdigest())
     sha = wrap(sha, ['text'])
diff --git a/plugins/String/plugin.py b/plugins/String/plugin.py
index 90d4492bf..91584bee8 100644
--- a/plugins/String/plugin.py
+++ b/plugins/String/plugin.py
@@ -219,9 +219,7 @@ class String(callbacks.Plugin):
     def xor(self, irc, msg, args, password, text):
         """<password> <text>
 
-        Returns <text> XOR-encrypted with <password>.  See
-        http://www.yoe.org/developer/xor.html for information about XOR
-        encryption.
+        Returns <text> XOR-encrypted with <password>.
         """
         chars = utils.iter.cycle(password)
         ret = [chr(ord(c) ^ ord(next(chars))) for c in text]
@@ -232,9 +230,7 @@ class String(callbacks.Plugin):
     def md5(self, irc, msg, args, text):
         """<text>
 
-        Returns the md5 hash of a given string.  Read
-        http://www.rsasecurity.com/rsalabs/faq/3-6-6.html for more information
-        about md5.
+        Returns the md5 hash of a given string.
         """
         irc.reply(utils.crypt.md5(text.encode('utf8')).hexdigest())
     md5 = wrap(md5, ['text'])
@@ -243,9 +239,7 @@ class String(callbacks.Plugin):
     def sha(self, irc, msg, args, text):
         """<text>
 
-        Returns the SHA hash of a given string.  Read
-        http://www.secure-hash-algorithm-md5-sha-1.co.uk/ for more information
-        about SHA.
+        Returns the SHA1 hash of a given string.
         """
         irc.reply(utils.crypt.sha(text.encode('utf8')).hexdigest())
     sha = wrap(sha, ['text'])