13 Most Powerful Wordpress Plugins

1. Buy me a Beer plugin : Allows your blog visitors to buy you a beer by sending you money through PayPal.

2.Enhanced WP-ContactForm :
WP Contact Form is a drop in form for users to contact you. In the message it sends to you it gives the page the user visited before the contact page, as well as the original outside referer .

3. Feedburner Feedsmith : Originally authored by Steve Smith, this plugin detects all ways to access your original WordPress feeds and redirects them to your FeedBurner feed so you can track every possible subscriber.

4. Firestats : Statistics plugin for WordPress.

5. GöSPress : GöSPress delivers spellcheck to those who prefer not to use the Visual Editor, along with the ability to allow spellcheck for reader commenting.

6. Google XML Sitemaps : This plugin will generate a sitemaps.org compatible sitemap of your WordPress blog which is supported by Ask.com, Google, MSN Search and YAHOO.

7. LinkLove : Where a commenter has commented at least 10 times (configurable) the nofollow reference is removed. For all newer commenters, the nofollow remains .

8. Live comments preview : Activate to supply users with a live comment preview. Use the function < ?php live_preview() ?> to display the live preview in a different location.

9. MyAvatars :
This plugin allows you to add MyBlogLog.com avatars to Wordpress comments.

10. Quoter : Allows commenters to quote other comments (dynamically or server side if they have Javascript disabled) and any other text in a page (Javascript only) .

11. Show Top Commentators plugin : Encourage more feedback and discussion from readers, by rewarding them every time they post a comment! Readers with the most comments are displayed on your Wordpress blog, with their names (linked to their website if they provided one) .

12. Subscribe to comments : Allows readers to recieve notifications of new comments that are posted to an entry.

13. Akismet : Akismet checks your comments against the Akismet web service to see if they look like spam or not. You need a WordPress.com API key to use it. You can review the spam it catches under “Comments.