Speed Up – Lazy Load (speed-up-lazy-load) free WordPress plugin

This plugin, implementing “Lazy Load” technique, avoids download of the pictures and iframe that are not displayed on the screen (for example: images in the bottom of the page) until the user will display them. This improves load speed of page and save the bandwidth.

Configurations are not required! You just have to install it and after the plugin does it all, none further action it’s required.
This plugin is very light: only 5 kb.