PHP Class for online forms
Textarea tools
Accessible Form Guidelines, The do's & don'ts of accessible form d ...
» How to Localize wForms « The Form Assembly
Zend Developer Zone | PHP Built in Input filtering
Form Validation
Forms | HTML forms tutorials || HTMLSource ]
youparklikeanasshole
Para crear formularios sin tener ni idea de código
Shows some examples and solutions on how to implement unobtrusive javascript form validation.
Interesting article on difference in behavior for forms if they are presented in radio button form or dropdown list.
Plug & play javascript form validation
Another form generator, Open Source, PHP based.
On the correct usage of HTML interface widgets
Thorough article explaining the various methods you can use to defer downloading large Javascript libraries (which can cause significant delays in webpage interaction), by using DOM-based insertion, AJAX loading and predictive fetching.
Good discussion on form widgets available in HTML. The number of options is rather limited, but things like the YUI library make this easier.
Dynamic form creation with Drupal: "FormCorral provides a simple and effective way to capture form data that can be emailed, downloaded as a CSV, and/or viewed in Drupal's admin online."
PHP class to create HTML forms: "FormBuilder is designed to do make building forms simple. It can do pretty much everything you might want to achieve with a typical HTML form"
Row highlighting doesn't seem to have a positive effect on user completion of forms when the labels are left aligned. Putting labels on top of the input field is still the most efficient form layout.
RDF Forms