Mitch

The most lightweight WordPress solution for quick maintenances. This plugin adds a maintenance option to your settings menu.
Features:
<ul>
<li>The admin bar maintenance button will become red to indicate that you have maintenance mode enabled so you’ll never forget to turn it off</li>
<li>Customize your own page – after that, you will be able to set it as your maintenance page</li>
<li>Administrators will still have access to the front-end of the website while the website is under maintenance</li>
<li>Lightweight, healthy code and very compact: that’s what makes this plugin so awesome!</li>
<li>Auto Disable (optional); Automatically turn off maintenance mode at the chosen date: you can also put the <code>easy-maintenance</code> shortcode in one of your pages to display the Auto Disable date to your visitors</li>
<li>Support for Genesis Framework and Contact Form 7: You are able to add a contact form to your maintenance page</li>
<li>This plugin will automatically use the style of your theme</li>
</ul>
No premium versions, no advertisements or hidden credits. This plugin will always stay lightweight and there won’t be any unnecessary code and/or features added.
I appreciate your review!

Easy Maintenance

The most lightweight WordPress solution for quick maintenances.

Sandesh

Lightweight Live Ajax Search plugin enables AJAX powered live search. Lightweight and provides a shortcode to display live search input box anywhere. You can place a shortcode wherever you want. Fully optimized and easy to use plugin.
<h3>How to use?</h3>
** Replace theme’s search form **
If you want to replace them’s search form, then it is a plug and play feature.
<ol>
<li>Go to Setings->Live Search</li>
<li>Enable Replace Theme’s Search Form option</li>
<li>Select the post types you want to allow for a search</li>
<li>Save it.</li>
</ol>
All instance of your theme’s search will replace with Live Ajax Search
** Use shortcode ** 
In some cases, if you do not want to replace theme’s search form, copy the shortcode and paste it anywhere you want. You have full flexibility on it.
<ol>
<li>Go to Setings->Live Search</li>
<li>Disable Replace Theme’s Search Form option</li>
<li>Select the post types you want to allow for a search</li>
<li>Save and Then Copy the shortcode and place it anywhere you want.</li>
</ol>

Lightweight Live Ajax Search

Live Ajax based search functionality. Lightweight and provides a shortcode to display live search input box anywhere.

Easy Maintenance vs Lightweight Live Ajax Search