[http://www.perlmonks.net/index.pl?node=perlman%3Aperltie#Tying_Hashes|http in brackets]

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<a href="http://www.perlmonks.net/index.pl?node=perlman%3Aperltie#Tying_Hashes">http in HTML link</a>

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<a href="/?node=perlman%3Aperltie#Tying_Hashes">site-relative HTML link</a>

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<a href="?node=perlman%3Aperltie#Tying_Hashes">relative HTML link</a>