domclic

Effortless Custom SEO Meta allows you to easily manage SEO titles and meta descriptions for your posts and pages. 
You can edit them directly from the post/page editor sidebar or via Quick Edit on the post/page list.
Features:
<ul>
<li>Add SEO Title and Meta Description for posts and pages.</li>
<li>Edit SEO metadata directly in Quick Edit.</li>
<li>Fully uses WordPress native UI/UX.</li>
<li>Saves your SEO metadata to post_meta (elcsm_seo_title and elcsm_meta_desc).</li>
<li>Properly enqueued JavaScript following WordPress coding standards.</li>
<li>Translation ready with text domain support.</li>
<li>Fully compatible with WordPress multisite setups.</li>
<li>Network activatable for multisite installations.</li>
<li>Per-site configuration in multisite environments.</li>
</ul>
<h3>License</h3>
This plugin is licensed under the GPLv2 or later.
<h3>Translation</h3>
The plugin is translation ready. To translate:
<ol>
<li>Create a /languages/ directory in the plugin folder if it doesn’t exist.</li>
<li>Use Poedit or similar tool to create .po and .mo files.</li>
<li>Name your files: effortless-custom-seo-meta-{locale}.po and effortless-custom-seo-meta-{locale}.mo</li>
<li>Place them in the /languages/ directory.</li>
</ol>
Example: effortless-custom-seo-meta-es_ES.po for Spanish (Spain).

Effortless Custom SEO Meta

Add SEO Title and Meta Description to posts and pages with Quick Edit support, fully integrated into WordPress native UI/UX.

webgarb

http://www.youtube.com/watch?v=z49D40Ureao 
Wp Inline Edit will add ability to author/admin/editor to edit post/page from directly from site without going to wp-admin edit page.
Just updated a post in your WordPress Blog, 
but noticed a spelling/grammar error? 
Got more work and less time? 
Aah! You no longer have to visit the edit page again, as with this plugin “Wp Inline Edit”, you can simply double click on your post to edit it from the post itself. It will make “inline editing” a trend that every blogger would embrace.
View the working of this plugin on <a href="http://youtu.be/z49D40Ureao" rel="nofollow ugc">Screencast at Youtube</a> 
Please comment you review about this plugin here <a href="http://webgarb.com/wp-inline-edit/" rel="nofollow ugc">Wp Inline Edit Page</a>.

WP Inline Edit

http://www.youtube.com/watch?v=z49D40Ureao

Effortless Custom SEO Meta vs WP Inline Edit