Razesdark

This plugin will allow all authors to have their own tweets shown on in the widget area of their posts, by adding it to their profiles. 
That way any multi-author blog can let their bloggers promote their own twitter account and not a joint account.

Author Based Twitter Widget

A Author based twitter widget, made to help multi author blogs have individual twitter widgets for their authors.

thedannywahl

My Posts simply adds an extra link under ‘Posts’ that takes the user directly to a list of posts authored by them. This is a great time-saver for multi-user and multi-author blogs. It works for any user with the ‘edit_posts’ capability.

My Posts

Add 'My Posts' to the admin menu. Perfect for multi-author blogs.

Author Based Twitter Widget vs My Posts