Auto-hide sticky header makes site navigation easily accessible anywhere on the page and saves content space at the same.
Auto-hide means hiding the header automatically when a user starts scrolling down the page and bringing the header back when a user might need it: they reach the bottom of the page or start scrolling up. There are at least two manners of hiding a header: reactive and lazy.
Scrolline.js is a jQuery plugin to create a scroll line bar indicator on the page.
Parallax-Scroll is a jQuery plugin to create elements with background images that behaves as if their background-attachment property is between scroll and fixed, similar to the parallax scrolling effect you see on Spotify
anchor.js is a small but might really useful jQuery Plugin brings in an animation to all native section links and smoothly jumps at an element anywhere on your page.
A tutorial about creating background effect that can move and zoom when scrolling.
jQuery Panelize is a concept project to play with different methods of vertical scrolling with sectioned content. It has good effect for single page / one page scroll websites.
ScrollFix is a jQuery plugin for making an element fixed when it goes out of view.
ScrollWatch is a jQuery plugin for determining active sections on the page based on viewport scrolling.
Midnight.js is a jQuery plugin that switches between multiple header designs as you scroll, so you always have a header that looks great with the content below it.
pagePiling.js is a jQuery plugin to create a beautiful scrolling curtain type websites. It's flexible and compatible with old browsers and touch devices. You can create an original scrolling site with this plugin.
Scrollator is a jQuery-based replacement for the browsers scroll bar, which doesn't use any space. Has very good performance
FSVS is a simple Full Screen Vertical Slider using CSS3 transitions followed up by a jQuery fallback.
Bound events support mousewheel, click and drag, arrow keys and touch gestures.
Anchor Scroll is a simple, smooth and lightweight plugin for animating anchor links.
Scroll Detection is a simple way to detect the distance the user has scrolled on your website.
In example, it is used to drop down a navigation bar so the user does not have to scroll all the way back up the page in order to navigate to the next area. It could also be used for sliding in a social sharing bar, displaying more content.
Endless.js is a simple jQuery plugin that allows an infinite scroll on any scrollable HTML element.
The idea is to join the top with the bottom or the left with the right. So when you are at the end or the beginning, you can scroll again and you will are done a complete tour.