Earlier this week, I posted a few tips for adding a tweet button on your web site, in an email or a PDF file, and on your Facebook Page. In that post, I briefly mentioned the vast number of social sharing and bookmarking plugins that are available for WordPress. I thought a useful follow-up post would be a look at some of the options you can explore if you want to add social sharing functionality to your WordPress blog.
Do you make it easy for your blog readers to share your posts? What social sharing plugin tops your list?
Sticky Social Bar
The easiest way to add a social bar to your wordpress blog. Sticky Social Bar has ajax items shortable, drag & drop bar position, compatible with any theme turns. left sticky mode so that the social bar will always be next to the margin of the screen.
AddThis

This plugin allows readers to bookmark and share posts easily to 295 of the most popular social networking and bookmarking sites, including Facebook, Twitter, Digg, StumbleUpon and MySpace.
iShare Plugin

It is jQuery powered plugin which adds social sharing and bookmarking button in your wordpress blog and allow your visitors to share them easily with their friends. It is highly customizable and can be integrate very easily on the pages or posts of your choice.
AddToAny
A plugin that helps readers share, bookmark and email posts and pages using Facebook, Twitter, Google Buzz, Digg, Delicious, more than 100 other sharing and social bookmarking sites.
Facebook Likebox Slider

One of the best Social Slider plugin for WordPress, Easy to install by 3 click configuration, mobile device support, live preview to see your increase of social traffic. iPad, iPhone, other mobile devices support. Powered by jQuery, Multi tabs layout.
Bookmarkify

A social media marketing plugin that lets you put social bookmarking links on your blog, including over 50 social bookmark sites and an “Email This” link.
Gregarious

A customizable social bookmarking plugin for sharing with the new Digg API and all of the top bookmarking sites included with Share This (it comes integrated).
I Love Social Bookmarking

A simple WordPress plugin that allows your readers to submit your content to social media services via a straightforward drop-down list, including Digg, Delicious, Facebook, Reddit, StumbleUpon, Technorati, and more.
Let’s Get Social

A social bookmarking button that lets readers submit your content to all of the most popular social sites.
Light Social

A lightweight plugin for technical blogs that includes a set of social sharing links at the bottom of each post.
SexyBookmarks

A social bookmarking menu by Shareaholic that allows readers to share on just about any social site through a customizable set of animated icons.
ShareThis

A plugin that allows users to share your content through email and 50+ social networks including Facebook, Twitter, Digg, Stumbleupon and Google Buzz.
Sociable

This tool lets you automatically add links on your posts, pages and RSS feed to 99 of your favorite social bookmarking sites.
Social Bookmarks

A plugin that adds a list of XHTML-compliant graphic links at the end of your posts and/or pages that allow your visitors to easily submit them to a number of social bookmarking sites.
Social Dropdown

This plugin displays several social bookmarks in a dropdown, and integrates with an external Social Bookmarking API.
Socialize

This plugin adds actionable social bookmarks to your posts either inside the content or in a box below the content.
Tell-a-Friend for Free

A sharing plugin by SocialTwist that allows reader to share your content with more than 80 of the most popular social media channels including Twitter, Facebook, LinkedIn, Delicious, Digg and many others.
Tweet This

A plugin for sharing your content with one click that supports 10 URL shorteners and options for 20 social networks including Facebook, Bebo and MySpace.
Best Tips and Tutorial for Wordpress Blogger with Plugins, Widgets, premium themes, SEO tricks and social media.

Very extensive list and these plugins are really helpful. Liked a couple of them, will install them in my blog.
Very good list of sharing plugins.
Here is another one of my choose
Thanks Maidul.
You have collected good plugins list for social media with WordPress
Hi, I came to know about the sticky social bar for the first time. Thanks for the post!