I am not sure what you work on, but here are some resources I like to see. * A in-depth, conceptual explaination of HTML/CSS layout and common UI idioms, so th

I am not sure what you work on, but here are some resources I like to see. * A in-depth, conceptual explaination of HTML/CSS layout and common UI idioms, so that I don't have to google something every now and then when making a website * Back-end security related topics in one place. Various type of attacks and edge cases. (OWASP comes quite close I think.) * Using Databases efficiently.