Here’s the code for integrating Facebook Share with Wordpress (i.e. you want users to be able to post your pages on facebook and you want to control what gets posted).

//Dynamic title

<?php
if (is_front_page()) {
echo ‘<meta name=”title” content=”HOME TITLE” />’;
} else {
echo ‘<meta name=”title” content=”‘;
wp_title(”,true,”);
echo ‘” />’;
}
?>

//Dynamic thumbnail using Press 75 Simple Thumbnail plugin

<?php
if (is_single()) {
if ( p75HasThumbnail($post->ID) ) {
echo ‘<link rel=”image_src” href=”‘;
echo p75GetThumbnail($post->ID, 200, 125);
echo ‘” />’;
}
} else {
echo ‘<link rel=”image_src” href=”URL TO HOME THUMBNAIL“>’;
}
?>

//Dynamic description using post excerpt

<?php if (is_single()):while(have_posts()):the_post();
echo ‘<meta name=”description” content=”‘;
$out_excerpt = str_replace(array(”\r\n”, “\r”, “\n”), “”, get_the_excerpt());
echo apply_filters(’the_excerpt_rss’, $out_excerpt);
echo ‘” />’;
endwhile;
endif;
?>

Happy Facebook sharing!