Sticky Navigation Menu with Smooth Scrolling is a basically a template with couple of features like that are invoked on scroll, shrink header, addition of drop shadow.
Smooth scroll feature is also added to logo(scroll top top) and smooth scroll to section on clicking menu item.
The Scroll Behavior specification has been introduced as an extension of the Window interface to allow for the developer to opt in to native smooth scrolling.
A tutorial about creating lightweight smooth anchor scrolling with jQuery. Also a basic scrollTop function included.
Customize scrollbar in modern browsers with smooth scrolling experience.
Smooth scrolling is a user interface pattern that progressively enhances the default in-page navigation experience, animating the change of position within the scroll box (the viewport, or a scrollable element) from the location of the activated link to the location of the destination element indicated in the hash fragment of the link URL.
jump.js is a small, modern, dependency-free smooth scrolling library.
jQuery toTop() is a simple, customizable and ultra light-weight plugin for smoothly Scroll back to Top.
Scrollify is a jQuery plugin that assists scrolling and smoothly snaps to sections. Fully configurable and optimised for touch.
jQuery Smooth Scroll Plugin automatically make same-page links scroll smoothly.