This plugin removes the mandatory 'Category Base' from your category permalinks. It's compatible with WPML.
Very customizable plugin to list posts by category (or tag, author and more) in a post, page or widget. Uses the [catlist] shortcode to select posts.
Enhances the Media Library; powerful gallery and list shortcodes, full taxonomy support, IPTC/EXIF/XMP/PDF processing, bulk/quick edit.
Remove Category URL strips the /category/ base from your category URLs, turning something like /category/my-category/ into simply /my-category/.