stephan.wozniak

This plug-in will automatically append social media links to the bottom of each blog post to share it on Google+, Twitter, and Facebook. Each link is powered by the official widget provided by each company.

Simply Sociable

Adds social media links for Google+, Twitter, and Facebook to the bottom of each blog post.

timhodson

Blog-in-Blog allows you to use the WordPress platform for it’s CMS features, but still have a blog page on your site. Posts selected by category, post_type, tag or any combination thereof, can be used to feed the ‘special’ blog page, and can optionally be hidden from the home page. 
You can have more than one category hidden from the homepage (not post_types or tags).
You can also use this plugin to show posts on the same page from different categories, post_types or tags, but in several different blocks and using different layout templates.
If you find this plugin useful (especially if it gets you out of a fix in a commercial setting), please feel free to leave feedback via the donate button.
I am grateful for those people who have already bought me a beer 🙂
Important: In previous versions of the Blog-in-Blog plugin you might have edited bib_post_template.tpl. If you are upgrading, we will copy this to a textbox so you can edit the template from the plugin page. The bib_post_template.pl file is no longer used and may vanish in a future release.

Blog-in-Blog

This plugin shows posts from a category on any page you like using shortcodes. Create multiple blogs within a blog using a category.

Simply Sociable vs Blog-in-Blog