This is an awesome resource for all things </Design>. http://webfieldmanual.com/
Source: Invision App Blog http://blog.invisionapp.com/25-awesome-conferences-for-designers-and-developers/
14 Design Podcasts to put in your ears. Source: Invision App Blog | ENJOY! http://blog.invisionapp.com/14-design-podcasts-to-put-in-your-ears/
A modern responsive front-end framework based on Material Design. http://materializecss.com
This is a Responsive Web Design Podcast, co-hosted byKaren McGrane and Ethan Marcotte. In each episode, Karen and Ethan interview the people who make responsive redesigns happen.
Luke is consistently a top-rated speaker at Web conferences and companies around the world. Writings: http://www.lukew.com/ff/ Presentations: http://www.lukew.com/presos/
Great post by Jason Grigsby from cloudfour.com
An article on Smashing Magazine introducing best in class responsive web design tools. Read article