Wordnik.com is an incredible online language resource that aims to transform the way people relate to meaning, by giving visitors a 360-degree view of what a word does. Search a word in Wordnik and you’ll get much more than a dictionary definition and a thesaurus entry. What’s more, the Related Content plugin by Wordnik constantly scans your blog, learns what it’s about, and dynamically displays the best related posts to your site visitors. Nifty!