Bot Tracker tracks bot activity on your blog and displays that data in a graph.
Sticky Image extends the post form, so you can directly upload an image, which then gets resized twice: You can setup a thumbnail size and optionally a new image-size. Requires a minor modification to a wp-admin script in order to work properly.
Tagline Randomizer changes the tagline displayed on your site each time the site is accessed. The values used are added by the blog owner from the Options panel of the Administrative Menu.