List repeating share links

There are a couple of problems with your code:

1. You have to close the PHP context, if you want to output plain HTML: function foo(){ ?><strong><?php }
2. Don’t repeat yourself. Always store repeating values in variables or functions. Writing <a href more than once is a bug.
3. Do not use get_the_title() in attributes. Use the_title_attribute( array ( 'echo' => FALSE ) ) instead, or you can get unexpected markup into your HTML output.
4. Do not use bloginfo('stylesheet_directory'). Use get_stylesheet_directory_uri() in child themes only and get_template_directory_uri() in all other cases.
5. Do not double-escape the &.
6. The share URL for Delicious is https://delicious.com/post?. It has been that for years.

The resulting code could look like this:

function pietergoosen_sosiale_netwerk_deel_knoppies()
{
    $services = array (
        'facebook' => array (
            'url'  => 'http://www.facebook.com/sharer.php?u=%1$s&t=%2$s',
            'text' => 'Share on Facebook.'
        ),
        'twitter' => array (
            'url'  => 'http://twitter.com/home/?status=%1$s%%20-%%20%2$s',
            'text' => 'Tweet this!'
        ),
        'google' => array (
            'url'  => 'http://www.google.com/bookmarks/mark?op=edit&bkmk=%2$s&t=%2$s',
            'text' => 'Google+1.'
        ),
        'stumbleupon' => array (
            'url'  => 'http://www.stumbleupon.com/submit?url=%1$s&title=%2$s',
            'text' => 'StumbleUpon.'
        ),
        'digg' => array (
            'url'  => 'http://digg.com/submit?phase=2&url=%1$s&title=%2$s',
            'text' => 'Digg this!'
        ),
        'delicious' => array (
            'url'  => 'https://delicious.com/post?url=%1$s&title=%2$s',
            'text' => 'Bookmark on Delicious.'
        ),
        'gmail' => array (
            'url'  => 'https://mail.google.com/mail/?view=cm&fs=1&to&su=%1$s&t=%2$s',
            'text' => 'Share per Gmail.'
        )
    );
    $img_base = get_template_directory_uri() . '/images/%s.png';
    $title    = the_title_attribute( array ( 'echo' => FALSE ) );
    $url      = urlencode( get_permalink() );

    print '<h4>Deel die pos met ander</h4>';

    foreach ( $services as $name  => $service )
    {
        $href = sprintf( $service['url'], $url, urlencode( $title ) );
        $src  = sprintf( $img_base, $name );

        printf(
            '<a href="https://wordpress.stackexchange.com/questions/98392/%1$s" title="%2$s"><img src="%3$s" alt="%2$s" /></a>',
            $href,
            esc_attr( $service['text'] ),
            $src
        );
    }
}

Now you can call this function in a template:

pietergoosen_sosiale_netwerk_deel_knoppies();