pressedsites

<a href="http://pressedsites.com/wordpress-save-hijack/" rel="nofollow ugc">WordPress Save Hijack</a> 
Adds a keyboard shortcut to trigger the Publish/Update functionality in WordPress posts.
This plugin should work with most versions of WordPress
<ul>
<li>Works in all major browsers. (on osx anyway please give feedback if find different on windows)</li>
</ul>

WordPress Save Hijack

Enables keyboard shortcuts for saving post edits (ie. cmd+s / ctrl+s)

Scott Lee

For all those times when you need to quickly, nay, swiftly edit the post or page you’re viewing. Also helpful for sites that have the Admin bar hidden when signed in.
Features:
<ul>
<li>If you are already signed in, you’ll be taken to the edit screen of the post or page.</li>
<li>If you are not signed in, you’ll be taken to the login screen and then forwarded to the edit screen upon successful login.</li>
</ul>
Usage:
<ol>
<li>Install and activate the plugin as normal.</li>
<li>Append <code>?se</code> to any post or page URL to be taken the the edit screen.</li>
</ol>

WP Swift Edit

Swiftly navigate to the edit screen of any post, page, etc. by appending ?se to the URL.

WordPress Save Hijack vs WP Swift Edit