One of the reasons I started with WordPress a few years ago was the plugin community. There are so many folks out there making amazing and unbelievably useful plugins that I wanted to highlight a few I've used or still use that don't get tons of press. Comment Redirect: I'm a firm believer in the "Thank You." Comment redirect one way I found to recognize new commenters and say thank you. After leaving their first comment, commenters are redirected to thank you page that you create. Really simple plugin but it pays off. DoFollow: This one might not be popular with everyone, but I'm a believer in the openness of the web. That's why I have DoFollow enabled on my comments and my entire site is CC3.0-BY-NC-SA. This removes the 'nofollow' tag from WordPress comments. I think this creates value for everyone: you provide value to your commenters with a dofollow link and they, hopefully, provide a bit of value by leaving a decent comment. Not always true, but give it a try. Easy Picasa: I'm not really into Flickr. No special reason, just love the big G and Picasa works well for me. One of my more popular posts is a little comparison of Flickr and Picasa. Anyway, this lightweight plugin makes it so easy to insert your photos directly from the New Post screen. What Would Seth Godin Do?: Great plugin that came from this one little line in one of Seth's posts "One opportunity that's underused is the idea of using cookies to treat returning visitors differently than newbies. It's more work at first, but it can offer two experiences to two different sorts of people." Wordbook: Being very social is hard. Wordbook links your blog to Facebook, automatically updating your status when you post. WordPress Backup: Does backups, on your schedule, and emails them to you or dumps them in a folder on your server. With 7GB of Gmail space, emailing is the most automatic option. Does not backup your database. WordPress Database Backup: But this one does get the database. Also emails or leaves it in a folder on your server.