Online forms are usually the best way to get your users to send you details, feedbacks, orders or get in touch with you. In a semantic point of view here is some resources about designing nice forms, using good code and semantic markup.

http://dnevnikeklektika.com/uni-form/

Uni-Form is an attempt to standardize form markup (xhtml) and css, “modularize” it, so even people with only basic knowledge of these technologies can get nice looking, well structured, highly customizable, semantic, accessible and usable forms.

http://www.alistapart.com/articles/prettyaccessibleforms

A nice article from A List Apart about semantic in html forms. If you don’t know A List Apart yet check it out, the articles on this website are always very interesting and well written.

http://c82.net/posts.php?id=25

A nice example of how to style a list of check box to provide an accessible alternative to multiple select list.

http://www.stuffandnonsense.co.uk/archives/trimming_form_fields.html

Wouldn’t it be a cool idea to give users the option to hide optional fields at their own discretion, and with a clever use of Javascript, the DOM and some CSS we can.