There's a great project for doing the actual lazy-loading, called Socialite.js: http://www.socialitejs.com/ http://www.socialitejs.com/ You can work to whateve

There's a great project for doing the actual lazy-loading, called Socialite.js: http://www.socialitejs.com/ http://www.socialitejs.com/ You can work to whatever actually hooks you want (onscroll, onhover, etc.), and then just call Socialite to actually replace the links.