After combining some code from several other people who have posted about this online, here’s a function I wrote that doesn’t use GUIDs, and even works with image thumbnail URLs:function pn_get_attachment_id_from_url( $attachment_url = '' ) { global $wpdb;$attachment_id = false; // If there is no url, return.if ( '' == $attachment_url )return; // Get the upload directory paths$upload_dir_paths = wp_upload_dir(); // Make sure the upload path base directory exists in the attachment URL, to verify that we're working with a media library imageif ( false !== strpos( $attachment_url, $upload_dir_paths['baseurl'] ) ) { // If this is the URL of an auto-generated thumbnail, get the URL of the original image$attachment_url = preg_replace( '/-\d+x\d+(?=\.(jpg|jpeg|png|gif)$)/i', '', $attachment_url ); // Remove the upload path base directory from the attachment URL$attachment_url = str_replace( $upload_dir_paths['baseurl'] . '/', '', $attachment_url ); // Finally, run a custom database query to get the attachment ID from the modified attachment URL$attachment_id = $wpdb->get_var( $wpdb-&gtrepare( "SELECT wposts.ID FROM $wpdb-&gtosts wposts, $wpdb-&gtostmeta wpostmeta WHERE wposts.ID = wpostmeta.post_id AND wpostmeta.meta_key = '_wp_attached_file' AND wpostmeta.meta_value = '%s' AND wposts.post_type = 'attachment'", $attachment_url ) ); } return $attachment_id;}

Christopher – thanks for this post. Cute? Maybe… but I thought my site had been hacked. Cute? I don’t think so… because the Smiley doesn’t show up when working on my site from my primary computer (where I installed the plugin from). The smiley only shows up to visitors and I only noticed once I viewed my website while traveling. WTF. This sure makes it seem like an effort to hide the smiley, if so why? And why not tell us about it and allow control? I have to seriously question what this plugins true goals are. Uninstalled for me until I find out.

You have to have site that is popular in order to get hits. Take myspace for example it very popular among kids thus the word of mouth advertisement is used. This I think is the best way to increase traffic. The second best option is to go around and post your website into all the search engine databases you can find. Also you might want to try Googles adsense program which can get you some money also. Most big search engines like Yahoo! or Google will let you also put a ad on their results page. Linking with othersites is really not that great. If you are using that as your main source of getting people to come I don’t see how you got 200 700 daily comming.

For some reason trackbacks won’t even display on my blog (presumably there’s a template tag missing from my heavily customised theme). This used to bother me, but actually I’ve come to realise that I find trackbacks get in the way.As you say, they’re generally out of context. Also they tend not to give enough information to glean the context they were written in, you have to leave the current page in order to read them, and often their authors are referring to the original post but not actually commenting on it.If I ever get around to figuring why trackbacks won’t display on my blog, I might try bunching them together at the end of the comments. That way they should make sense as a group, and not interfere with the discussion.