If you wordpress lover then you'll should use one of this Google + plugin. After google make their own social networks, it is proved that by installing the Google sharing will benefit in the future. For that reason then I'm going to take a look at the available plugins to add the +1 button and Google Plus profile to your blog.
1) WordPress Google +1 Button - Advanced Plugin, Includes Redirection
Give you ability to installing Google +1 button to your website's posts, pages, attachments, and custom post types. This advanced plugin has a variety of options for button style and position, and exposes a wp_plus_one_button action for custom integration with the theme or other plugin.
Install WordPress Google +1 Button - Advanced Plugin, Includes Redirection
2) Google +1 Button Advanced
Plugin to add manually or automatically Google +1 button to wordpress contents. Choose where to add: top, bottom, both, manually in theme or in post/pagecontent.
Install Google +1 Button Advanced
3) Google +1 Button
Google +1 WordPress plugin adds a configurable Google +1 Button to your WordPress blog. You can set the title, alignment, size, background (and language) of the +1 button. Simply install the plugin and place the widget.
Install Google +1 Button
4) WordPress plugin - Google +1 Button
New Google+1 button allows your blog to be rated. The button also provides a current count of how many times your story has been liked on Google Search Engine.
Install WordPress plugin - Google +1 Button
5) Google +1 Button Plugin
The WordPress Google +1 Button Plugin: Add +1 to your pages to help your site stand out +1 buttons let people who love your content recommend it on Google search.
Install Google +1 Button Plugin
6) googleCards Wordpress Plugin
googleCards is a google+ wordpress plugin. It adds a widget to your blog that will display a link to your google+ profile so people can add you to a circle (follow you). It also displays your name, profile picture and the number of people who have you in circles.
Install googleCards Wordpress Plugin
7) Scriptrr Google + Profile widget
Google Plus Profile Widget allows users to add plugin on their blog or website to invite visitors to new Google + Profile
Install Scriptrr Google + Profile widget
8) Google+ Plus WordPress Widget
Display the latest post from your Google+ Plus accounts inside WordPress widgets. Customize the number of post displayed and user allowed to include updates from Google Buzz too.
Install Google+ Plus WordPress Widget
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