TypeIt is a lightweight, scalable jQuery animated typing plugin that types single or multiple strings for you.
LetterFx is a a jQuery plugin to apply animated visual effects to text - letters, words & custom patterns.
LetterFx works by temporarily injecting markup into the text of an
$("element") and sequentially adding & removing transition-based CSS classes.
WordsRotator is a jQuery plugin to easily add rotating words with CSS3 animation.
funnyText.js is a jQuery plugin that creates animation for the letters inside a text moving them vertically or horizontally. Ideal for titles and you can configure colors, speed of movement, font size...
Jumble is a jQuery plugin that jumbles up the colours of your text - and can animate them. (which is mobile safe)
Textillate.js combines some awesome libraries to provide a ease-to-use plugin for applying CSS3 animations to any text.