Here`s a free php youtube video downloader script. It can be integrated in wordpress or any other site that uses php. You can use it as by linking to yoursite/youtube.php or by including it with a iframe. To include it
Free Social Bookmark Script generator
Here`s a free Social Bookmark Script generator I made. It`s actually a clone of another website that I don`t want to mention. Check it out, you might like it and it could get you lots of backlinks. Host your own