Sometimes I just type "man something-or-other" and would like google to take over if the man page does exist.

google-man

#!/usr/bin/perl
use strict;

$|++; # piping hot!

my $BROWSER = 'chromium-browser';
my $man = '/usr/bin/man';

sub googleit {
        my $search = join( " ", @ARGV );

        die 'no search term provided'
                if $search =~ /^\s*$/;

        $search =~ s/\s+/\+/g;

        my $url = "www.google.com/?q=$search";

        system( "$BROWSER $url" );
}

# Test if it's a man page
my @r =`$man -f $ARGV[0] 2>&1`;
if( grep { /nothing appropriate/ } @r ){
        my $s = join( " ", split( /-/, $ARGV[0] ) );
        googleit( $s );
        exit 0;
}

system( "$man " . join( " ", @ARGV ) );