Is this a hash?
<a href="$rss->{'channel'}->{'link'}">$rss->{'channel'}->{'title'}</a>

$rss is a reference to a "HoH"- hash of hashes.

This syntax looks odd. What is it doing and how do I read it?
foreach my $item (@{$rss->{'items'}})

$rss->{'items'} is being dereferenced as an array.

read   perldoc perlreftut   for the references,   perldoc perllol   and   perldoc perldata   for the complex data structures.

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