jQuery Smartify loads images, calls Ajax, plays with css classes in on demand, while element is/or becoming visible in device Viewport. It's replacement of jQuery Lazyload.
JAIL is a jQuery plugin that lazy load images making your page load faster. Images are downloaded when they are visible or when they become visible inside the viewport
responsivelyLazy is a nice lazy loading implementation that is responsive, truly lazy and SEO friendly.
Horsey is a progressive and customizable autocomplete component. It supports every sane browser and IE7+.
Layzr.js is a small, fast, modern, and dependency-free library for lazy loading images.
Tada is a lightweight, no dependency library for lazy image load. jQuery plugin is also provided. Duplicate element check, throttled scroll handler, percent threshold supported.
A tiny jQuery plugin for lazy-loading Google Maps.
bLazy is a lightweight lazy loading image script. It lets you lazy load and multi-serve your images so you can save bandwidth and server requests. The user will have faster load times and save data loaded if he/she doesn't browse the whole page.
lazysizes is a fast lazyloader for images (including responsive images), iframes and scripts/widgets without any dependency. It may become also your number one tool to integrate responsive images.
Sheetrock is a jQuery plugin for querying, retrieving, and displaying data from Google Spreadsheets. Use it to load entire sheets or leverage SQL-like queries to treat Google Spreadsheets as a quick-and-dirty JSON datastore.
BttrLazyLoading is a jQuery plugin that allows your web application to defer image loading until images are scrolled to but not only! BttrLazyLoading also allows you to have different version of an image for 4 differents screen sizes: phones (<768px), tablets (≥768px), desktops (≥992px) and large Desktops (≥1200px).
Lazyload Any is a jQuery plugin provides a lazyload function for images, videos, iframe or anything.
Responsive lazy loader allows you lo load the most appropriate image renditions according to the current breakpoint and to the current display into the CSS grid-system.
Lazy Load XT is a mobile-oriented, fast and extensible jQuery plugin for lazy loading of images/videos with build-in support of jQueryMobile framework.