Category Listings outputs a list of posts enclosed in a set of DIV tags – the class for this DIV can be configured in the admin options.
IE6 Countdown shows the IE6 countdown banner from Microsoft to visitors using IE6.
AddThis allows any visitor to bookmark and share your site easily with many popular services.
Vibe SEO Pack runs an SEO audit for each one of your posts or pages and suggests what should be improved for a better ranking.
WP Customer Reviews allows your customers and visitors to leave reviews or testimonials of your services.