Hybrid drop down
Mashable uses Wufoo
Form label disappears onchange
BuzzFeed's content submission module
solid set teaser
1037 icons in Vectory Ultimate Pack ~ Icons on Creative Market
Tervel - Vector Stroke Icons iOS7 ~ Icons on Creative Market
The drop-down menus feature stunning transitions.
USA Today - Colour coding and iconography depict content type and category.
Read Write - read/visited articles are differentiated.
NewYorkTimes - Commenting button inline with body copy at the bottom of the article
NewYorkTimes - Prev/next buttons (fixed against viewport edge), shows thumbnail and heading preview (if paged scrolled down past the 'Ribbon'.
NewYorkTimes - Reading 'Ribbon', linked with fixed prev/next buttons (against viewport edge)