Every time you modify a post slug, add a new post, rename a category, or otherwise modify any of your post and page permalinks, jadedcoder Sticky Permalinks (jcsp) will keep a copy of the original permalink along with the post or page it originally led to. If anyone tries to access the old URL, they will be redirected right to the new one, no matter how many times you’ve changed it.
If you re-use a URL that has already been used in the past, its copy will be replaced and it will safely link to the new article instead.
Don’t throw away valuable URLs! This plugin lets you re-organize your site as many times as you want, without risking traffic loss.

jadedcoder Sticky Permalinks

Keeps a history of your permalinks no matter what changes you make on your site, and redirects old links to the new ones.

insivia

Providing the ability to manage how social media sites see your blog or website. Manage your facebook sharing image, update twitter status for multiple accounts and view your digg submissions. Also can post your new blogs to multiple twitter accounts when you publish a new post. More coming soon.
<a href="http://www.insivia.com/wordpress-social-media-manager" rel="nofollow ugc">Social Media Manager</a> built by <a href="http://www.insivia.com" rel="nofollow ugc">Insivia Marketing & Interactive Web Design</a>

Social Media Manager

Providing the ability to manage how social media sites see your blog or website. Manage your facebook sharing image, update twitter status for multipl …

jadedcoder Sticky Permalinks vs Social Media Manager