http://www.acl.lanl.gov/URI/archive/uri-archive.index.html 
http://www.foad.org/~abigail/General/references.html#headley 
http://www.google.com/search?q=perl+regular+expression 
ftp://@host.com/ 
ftp://host.com/ 
ftp://foo:@host.com/ 
ftp://myname@host.dom/%2Fetc/motd 
ftp://myname@host.dom/etc/motd 
ftp://myname@host.dom//etc/motd 
news:rec.talk 
news:wr3bucw59ig.fsf@kimbark.uchicago.edu 
nntp://genetics.upenn.edu/perl.porters-gw 
nntp://genetics.upenn.edu/perl.porters-gw/2434 
telnet://guest:guest@somehost.com:21/ 
gopher://wx.atmos.uiuc.edu/I9/Images/Surface%20Images/Wxpmap%20United%20States/00LATEST 
gopher://wx.atmos.uiuc.edu:70/11/States/Florida 
wais://machine:2010/marc?query 
mailto:billg@microsoft.com 
file://vms.host.edu/disk$user/my/notes/note12345.txt 
ldap://ldap.itd.umich.edu/c=GB?objectClass?one 
ldap:///o=University%20of%20Michigan,c=US 
ldap://ldap.itd.umich.edu/o=University%20of%20Michigan,c=US 
ldap://ldap.itd.umich.edu/o=University%20of%20Michigan,c=US?postalAddress 
ldap:///o=University%20of%20Michigan,c=US??sub?(cn=Babs%20Jensen) 
ldap://ldap.itd.umich.edu/c=GB?objectClass?one 
imap://user@host/mailbox#message 
nfs://www.cs.utah.edu//foo/bar 
