footer.php

<div id="footer">
    <div id="footer-content">
        <div id="footer-copyright">
            <img alt="turpial logo" src="<?php bloginfo('template_directory'); ?>/images/footer-logo.png" width="70" />
            <p>© Turpial is software libre under GPLv3 license</p>
        </div>

        <div id="footer-icons">
            <a href="http://twitter.com/satanas82">by satanas82</a>
            <a href="http://wordpress.org" title="Este sitio corre bajo Wordpress"><img alt="Wordpress logo" src="<?php bloginfo('template_directory'); ?>/images/wordpress-logo.png" width="40" /></a>
            <a href="http://validator.w3.org/check?uri=referer" title="Este sitio valida XHTML Strict"><img alt="W3C Validator" src="<?php bloginfo('template_directory'); ?>/images/w3c-logo.png" width="40" /></a>
        </div>
    </div>
</div>