Just came across this neat library maintained by a small group of developers in Vilnius, Lithuania.
iFrame Resizer Plugin
iFrame Resizer Excellent plugin to manage same domain or cross domain iframe formatting.
Awesome Media Queries in JavaScript – enquire.js
enquire.js is a lightweight, pure JavaScript library for responding to CSS media queries. It’s totally awesome Source: Awesome Media Queries in JavaScript – enquire.js Another great library from Nick for architecting advanced responsive sites.