Simple Google +1 Button

Easy To Use Social Bar with Your Favorite Social Share Buttons

Adds Google +1 stuff to the blog. E.g. a overview of the number of shared articles.

You can have all social network buttons or box counters from Facebook, Google Buzz, Google+ (Google +1), Twitter, StumbleUpon, Digg, MySpace, Deliciou …

Love It is a simple plugin that adds a "Love It" link to your posts, pages, and custom post types. Show your most popular items in a widget.

Add to Sharedaddy support service.

This plugin adds a 'Add [author_name] on Google+' button to the end of every post.

This plugin lets you select a specific template for a category, just like pages

This plugin adds Google Plus Comments system, Facebook comments and / or Disqus Comments to your site.

this plugin helps you to limit the number of posts/pages/custom post types each user can create on your site.

This plugin lets you select a specific template for a taxonomy term, just like pages

create a wiki like TOC (table of contents) in your posts or pages using shortcode.

A plugin that integrates The Awesome Aviary editor In the WordPress Media Library.