Add Alt adds empty alt attributes to the images in your WordPress posts that lacks one.
Blog Voyeur lets you view what your readers are doing, how often they come back, and what they read.
Category Description Editor helps you make nice category descriptions that appear at the top of each category page.
CommentMailer helps you maintain the discussion on your blog by letting the commenters know that you have replied their comments on the comment section of your post.
QuickRSS allows you insert an RSS feed into your post.