There are so many good developer sites, just like a sea.
Websites
Collection of web sites that web developer should know. Click Me
Background
There are already existed some awesome collections, like js-the-right-way and so on.
However, I want to do some stuff more like bookmarks for web developers.
Advanced using
Firefox Addon
If you want to install this bookmark to Firefox Addons.
You can find the firefox xpi format file here