mabujo

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.
The plugin uses caching to store your google plus profile data to eliminate checking google+ on every page load. 
For the caching to work, your web-server needs to be able to write to wp-content. (a lot of plugins require this so it should be fine). 
If the plugin cannot cache it will still work, but will store the data in the database instead. If caching is working you should see a file called plus_card.txt in /wp-content/cache/. 
As of version 0.4, caching will also failback to using transients to store your scraped google plus data.
Plugin page : <a href="http://plusdevs.com/google-wordpress-plugin/" rel="nofollow ugc">Google plus wordpress plugin @ plusdevs</a>

googleCards

A simple plugin that adds a google+ widget for linking to your google+ profile and showing your number of followers

Shah Rishabh

Social Space is a very light weight widget that will help you to easily share your social links. When you activate this plugin widget, you’ll see ‘Social Space’ appear in the widget’s list. Just drag and drop it wherever you wish to show your social links on the website.
Within the widget, you can add a ‘Title’ that will appear on the website as widget’s title. Then there is a list of different social networking websites where you can directly link them to your social profile by simply providing your profile URL in the given area. Only those social icons will be displayed on your website for which you have added your profile link/URL.
For example – If you provide links only for Twitter, Skype, Instagram and leave all the other blank, then you’ll only see Twitter, Skype and Instagram icons appear on the website. So its easily customizable and you can ‘Choose what you want to Share’
<h3>Features And Options:</h3>
<ul>
<li>Customizable icon shapes.</li>
<li>Supports 11 major popular social icons.</li>
<li>3 different and attractive rollover (hover) effects for icons.</li>
<li>Ridiculously simple and easy to customize.</li>
<li>Light weight plugin.</li>
</ul>
Note: Be sure to enter the URL for each social site by starting with ‘http://’ or ‘https://’ (Example: http://www.navkarya.com/) in order to make the social icons properly link to your social profile.

Social Space

A ridiculously simple plugin for showing your social network links using a simple widget so that people can connect with you more easily.

googleCards vs Social Space