1. WordPress.com Stats – You can have simple, concise stats with no additional load on your server by plugging into WordPress.com’s stat system.
2. WP Super Cache – A very fast caching engine for WordPress that produces static html files.
3. PollDaddy Polls – Create and manage PollDaddy polls from within WordPress.
4. IntenseDebate Comments – IntenseDebate comments enhance and encourage conversation on your blog. Build your reader community, increase your comments, & boost pageviews.
5. Wickett Twitter Widget – Display tweets from a Twitter account in the sidebar of your blog. As seen on WordPress.com.
6. Get Recent Comments – Display the most recent comments or trackbacks with your own formatting in the sidebar.