Advanced Permalinks extends the default permalink functionality and allows you to create different permalink structures for each post on your site.
Bloglines Blogroll enables you to integrate your favorite feeds in wordpress on the sidebar.
Del.icio.us for WordPress displays your latest del.icio.us bookmarks in your WordPress blog.
StatusPress posts your Facebook status to your WordPress blog.
GX Calendar Date Style allows you to easily display your post time and datestamps in a little calendar graphic.
Headspace manages meta-data and handles a wide range of SEO tasks.
WordPress Language Translator has been updated to work with WordPress 2.2.2.
Last.fm for WordPress displays your Last.fm recently listened tracks in your WordPress blog.
Login Lockdown restricts the number of times someone can enter the incorrect password while logging into WordPress within a short period.
The Sphere Related Content plugin has been updated to include politics-related widgets to your site.
Summarize This will add a button to the sidebar as a widget to summarize the page.