Nur Hasan

WPBookmark is a wordpress plugin that allows users to bookmark posts/pages. 
you can selectively disable bookmarking feature on certain pages/posts.
Major new features in wpbookmark include:
<ul>
<li>user can maintain his own custom list of bookmarked posts or pages.</li>
<li>site owner can explicitly mention which pages/posts user can add to his/her bookmark list.</li>
</ul>
<h4>Pro Version</h4>
Pro Version includes some extra features and allows customization. Features include: 
1. Bookmark button position can be adjusted. 
2. Button color can be adjusted. 
3. Admin can monitor which pages/posts were bookmarked the most from admin dashboard. 
4. Admin can easily notify group of users who liked/bookmarked a post/page through email. 
5. Emailing can be queued to be delivered on a later time.
<ul>
<li>Go to: http://www.binnash.com/wpbookmark-pro/ to get the pro version</li>
</ul>

WPBookmark

WPBookmark is a wordpress plugin that allows users to bookmark posts/pages. you can selectively disable bookmarking feature on certain pages/posts.

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fabiancz

This plugin adds a set of cool icons and widgets at the end of your post for your readers to share. Widgets are Twitter, Facebook and Google +1. It supports large icons and small icons.
This plugin is copy of “simple-social-sharing-widgets-icons”, because it’s not updated;

Simple Social – Sharing Widgets & Icons Updated

Adds a set of cool icons and widgets at the end of your post for your readers to share.

WPBookmark vs Simple Social – Sharing Widgets & Icons Updated