Pinboard (asphotographics) https://pinboard.in/u:asphotographics/public/ recent bookmarks from asphotographics Making Sense of your Credit Card Number 2011-01-26T00:16:12+00:00 http://www.labnol.org/home/understand-credit-card-numbers/18527/ asphotographicshowto creditcard validation https://pinboard.in/ https://pinboard.in/u:asphotographics/b:fee3e0610804/ A List Apart: Articles: Inline Validation in Web Forms 2011-01-19T19:31:37+00:00 http://www.alistapart.com/articles/inline-validation-in-web-forms/ asphotographicsform ui ux validation https://pinboard.in/u:asphotographics/b:51c12e12cb99/ A List Apart: Articles: Forward Thinking Form Validation 2011-01-19T19:31:37+00:00 http://www.alistapart.com/articles/forward-thinking-form-validation/ asphotographicscss form html5 ui ux validation https://pinboard.in/u:asphotographics/b:d1824537060e/