Reference

1. CSS Frameworks Roundup - An overview of some popular frameworks: Twitter Bootstrap, Blueprint, YUI, Foundation 3, Skeleton.

2. CSS Grid Systems Roundup - A roundup of the different grid systems available: 320 and Up, Responsive Grid System, etc..

3. Mobile Screen Sizes - A roundup of mobile screen size matrices/tables.

4. Rails Mobile Solutions Roundup - Different ways to detect mobile devices and deliver mobile versions of your application.

5. Icon Fonts

6. Inspirational Sites - Resources to help inspire design and UI patterns for desktop, mobile and responsive websites.

7. Placeholder Services - A roundup of Lorem Ipsum and image placeholder services.

8. Feedback Services and Device Testing - A roundup of UX feedback services, and articles on device testing.

9. Font Services - Font services to help you deliver a great typographic experience.

10. Choosing Typefaces - Inspiration on choosing typefaces, choosing typeface articles, and great advice from Jason Santa Maria on choosing typefaces.

11. Font Combinations - Inspiration on pairing fonts, articles on how to pair fonts, and some sources for examples of paired fonts.

12. Font Stacks - Different Web safe fonts, font stack combinations and fallbacks, and typography classifications and definitions.

13. Font Tools - Font tools to help you deliver a great typographic experience.

14. A Brief History of Web Font Sizes - Different articles from my archives over the last 12 years regarding web font sizes.

15. Color Tools, Wheels, Generators, Palettes and Collections - A roundup of different color tools, color wheels, image to color palette generators, community color palettes, and color collections.

16. Browser and Mobile Testing - A roundup of everything you need to test for cross browser issues and mobile rendering.

17. Browser Info - A roundup of browser market share, countdown, support and comparisons/compatibility websites.