December 2015 Update:
Page Stack Navigation View Demo

The idea is to show a navigation when clicking on the menu button and transform all pages in 3D and move them to the bottom of the viewport. The next two pages are shown in the back of the current page as a stack.
Stretchy Navigation View Demo

A rounded navigation trigger that stretches on click/tap to reveal the navigation items.
Vertical Layout with Navigation View Demo

Vertically scrolling sections of content with a slick mobile hamburger navigation.
Multi-Level Menu View Demo

A simple multi-level menu with delayed item animations and an optional breadcrumb navigation and back button.
3D Bold Navigation View Demo

A bold navigation that slides in when active, replacing the current content in a 3D space.
Responsive Sidebar Navigation View Demo

An easy-to-integrate side, vertical navigation, ideal for dashboards and admin areas.
Full-Screen Pushing Navigation View Demo
A full page menu, that replaces the current content by pushing it off the screen.
Bouncy Navigation View Demo
CSS animations and a pinch of jQuery to animate navigation items, and let them bounce in and out the screen.
MenuItems
Dynamic jQuery menu plugin that lets you create beautiful and responsive navigation widgets.
Multi-level Push Menu jQuery Plugin View Demo
Multi-level push menu is cross-browser compatible jQuery plug-in allowing endless nesting of navigation elements.
Rounded Animated Navigation View Demo
A full-screen navigation, animated using CSS and jQuery, that expands within a circle.
Slidebars
Slidebars is a jQuery plugin for quickly and easily implementing app style off-canvas menus and sidebars into your website.
Slide In Panel Navigation Plugin View Demo
A CSS3 and jQuery powered slide-in panel, to quickly show side content, notifications or profile information.
Closing Door Menu Plugin View Demo
It’s a closing door menu where 2 sides of the menu come together offscreen to create the final menu.
Smart Fixed Navigation View Demo
A fixed navigation that allows your users to access the menu at any time while they are experiencing your website. It’s smaller than a full-width fixed header, and replaces the back-to-top button with a smarter UX solution.
Full-Screen Pop-Out Navigation View Demo
Here is a fixed menu that drives users’ attention to a couple of call-to-action buttons first, then let them explore the full-screen navigation.
FLEXNAV View Demo
FlexNav is a mobile-first example of using media queries and javascript to make a decent multi-level menu with support for touch, hover reveal, and keyboard tab input accessibility.
Perspective Page View Navigation View Demo
Some effects for a perspective page view navigation where the page itself gets pushed away in 3D to reveal a menu or other items. This navigation idea is seen in mobile app design and we wanted to explore some more effects.
Responsive Multi-Level Menu View Demo
A responsive multi-level menu that shows its submenus in their own context, allowing for a space-saving presentation and usage.
Flaunt.js View Demo
Flaunt.js is a jQuery script that allows you to create a responsive, nested navigation out the box. Flaunt was built to overcome responsive design challenges which faced a huge percentage of websites.
Responsive Retina-Ready Menu View Demo
The menu automatically changes to one of three different layouts depending on the browser window size: a “desktop” inline version, a two columns tablet-optimized version and a mobile version with a menu link to display and hide the navigation for smaller screens.