A handy, search-driven CSS reference for properties and values
reference
An Explanation of Photoshop Blend Modes
The Web Platform: Browser technologies
Critical bookmark for Web devs, as it’s an excellent index of browser technologies (HTML5, JavaScript, CSS, storage etc.).
Mobile Web Resources | Mobile Web Best Practices
CSS3 properties accurately explained
Great inline examples.
HTML5 — Edition for Web Developers
‘The focus of this specification is readability and ease of access. Unlike the full HTML specification, this “web developer edition” removes information that only browser vendors need know.’
This is sorely needed.