craigsimps

This is a super-simple plugin which will turn WordPress’ default <code>/?s=query%20terms</code> into <code>/search/query+terms/</code> if you have pretty permalinks enabled.
This is something which I have been placing into a theme include or in a core functionality plugin until recently, but it makes sense to separate this functionality out into an individual plugin so it can be switched on and off independently.
The plugin has no administrative interface or control panel. Activation turns it on, deactivation turns it off. Once activated, performing a search using the standard WP search widget should give you a much nicer search URL.

Simple Search Rewrite

Redirects search results from /?s=query to /search/query/, and converts %20 to +.

voceplatforms

prettyboymp

Kevin Langley Jr.

Chris Scott

This plugin allows you to rewrite the root url of assets, css, and js files. This allows you to load these resources from an external URL improving the page load time by taking advantage of parallel browser requests.
This plugin requires the use of the <a href="https://github.com/voceconnect/voce-settings-api" rel="nofollow ugc">Voce Settings API</a> library.
If using <a href="http://getcomposer.org" rel="nofollow ugc">Composer</a> for dependency management, you can alternatively, after including the plugin files, run composer install to retreive the Voce Settings API dependency.

WP CDN Rewrite

Rewrite the root url of assets, css, and js files.

Simple Search Rewrite vs WP CDN Rewrite