Lazy Load (lazy-load) free WordPress plugin

Lazy load images to improve page load times. Uses jQuery.sonar to only load an image when it’s visible in the viewport.

This plugin is an amalgamation of code written by the WordPress.com VIP team at Automattic, the TechCrunch 2011 Redesign team, and Jake Goldman (10up LLC).

Uses jQuery.sonar by Dave Artz (AOL).