Well just a search on google will give you this results:

http://www.shellcode.com.ar/docz/bof...efmt-howto.txt
http://www.phrack.com/show.php?p=57&a=5 (WRITING SHELLCODE FOR IA-64)
http://www.w00w00.org/files/shellcode/ ( Index of /files/shellcode )
http://www24.brinkster.com/neolabs/p...shellcode.html (Programming a shellcode in SCO)
and etc...

I hope this wouldn't be used for illegal ativities.