Tagarea is a jQuery plugin I created to ease the pain of typing delimited lists of words(like tags/labels for blog posts)
Tagareaa turns a textarea or text input field into a ‘tagarea’ which allows the user to enter a list of tags/labels and displays them nicely(a lot like the the Tumblr tag field). Each tag can then be removed using its close button. Reduces typographical errors when asking a user to enter a delimited list, and looks great too boot!
To see some examples or to get the plugin, you can download both from http://bitbucket.org/leecaine/tagarea/downloads/