--- a/crack.rst	Thu Jan 28 21:46:13 2010 +0200
+++ b/crack.rst	Sun Feb 07 13:57:25 2010 +0200
@@ -37,3 +37,14 @@
   http://www.textfiles.com/computers/fileid.txt
                 v1.9 spec
   http://en.wikipedia.org/wiki/FILE_ID.DIZ
+
+* Crack intro.
+
+A crack intro, also known as a cracktro, loader, or just intro, is a small
+introduction sequence added to cracked software, designed to inform the user
+of which "cracking crew" or individual cracker was responsible for removing
+the software's copy protection and distributing the crack.
+
+  http://en.wikipedia.org/wiki/Crack_intro
+  http://www.defacto2.net/cracktros.cfm
+                Hundreds of cracktros, loaders and installers for the PC