New plugins
eShop Shipping Extension overrides eShop’s default shipping methods, interacting directly with Canada Post, UPS, USPS, Fedex, and Correios for real-time shipping rates and services.
Genericon’d enables easy use of the Genericons icon font set from within WordPress. Icons can be inserted using either HTML or a shortcode.
Updated plugins
BackWPup allows you to backup your WordPress database, files, and more.
Facebook makes your site deeply social by integrating functionality from Facebook.
Posterous Importer imports posts, comments, tags, and attachments from a Posterous.com blog.
SyntaxHighlighter Evolved allows you to easily post syntax-highlighted code to your site without having to escape the code or anything.
Watu allows you to create exams with unlimited questions and answers, and define grades based on collected points.
Watu sounds interesting – I’ve been using wp-polls for my customer polls… probably not what Watu was intended for but it sounds like it could be a good alternative.
Tried BackWPUp earlier today – I still prefer Austin Matzko’s WordPress Database Backup – it’s simple and it works consistently.
Facebook’s Comment Box social plugin looks pretty cool. It attracts comments from logged in people, and It sorts them out based on social signals such as friend networks, most liked, or active discussion threads. Very nice.