JS arrays to simplify jQuery filtering
I would recommend using the .on() for click event delegation:

$('.wwd-filters').on('click', 'a', function(e) {
    e.preventDefault();
    var id = $(this).data('id');
    jQuery('.wwd-content-container .wwd-content-each').fadeOut();
    jQuery('.wwd-content-container .wwd-content-each.' + id).fadeIn();
});


This implementation grabs the id of the section you wish to show via the data attribute in the a elements:

&lt;ul class="wwd-filters"&gt;
   &lt;li&gt;&lt;a data-id="corporate" href="#corporate"&gt;&lt;span&gt;Corporate&lt;/span&gt;&lt;/a&gt;&lt;/li&gt;
   &lt;li&gt;&lt;a data-id="commercial" href="#commercial"&gt;&lt;span&gt;Commercial&lt;/span&gt;&lt;/a&gt;&lt;/li&gt;
   &lt;li&gt;&lt;a data-id="construction" href="#construction"&gt;&lt;span&gt;Construction&lt;/span&gt;&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;