Google Image Labeler: Get your creative synapses firing by (a) viewing images from Google's vast library and then (b) free-associating words. Google turns it into a game by pairing you with an online partner; when both of you tag an image with the same word, a new image appears. Time's up after 90 seconds. Clever crowdsourcing for Google (which is using the input to improve its image-tagging accuracy); good brain calisthenics for you. (Via Visual Thesaurus.)
Wordie.org: All words, no pictures. From the site: "Wordie lets you make lists of words -- practical lists, words you love, words you hate, whatever. See who else has listed the same words, add citations and comments, and discuss." Definition links are thoughtfully included to a raft of sources including The Free Dictionary, Ninjawords, and Urban Dictionary. (Hat tip to Bill R.)
Dark Just Got Fun: Unexpected brilliance from the makers of M&M's dark chocolate candies. Search the intricate, Bruegelesque image for visual allusions to "dark movies"--fifty scary titles in all. Which movie is suggested by a flock of sheep wearing earmuffs?
The Complete Illustrated Catalog of Acme Products: The creators of the Bugs Bunny cartoons never bothered with tedious name-development sessions: for them, one brand name functioned (or malfunctioned) in every situation. Thus this catalog, containing every Acme product, from adding machine to X-ray, along with source cartoons and images. In the same spirit, read Ian Frazier's classic Coyote v. Acme ("Mr. Coyote states that on eighty-five separate occasions he has purchased of the Acme Company [hereinafter, 'Defendant'], through that company's mail-order department, certain products which did cause him bodily injury due to defects in manufacture or improper cautionary labelling...").
Flickr Grammar Follies: Funny photos from around the world demonstrating "quotation mark" abuse, very public spelling mistakes, atrocious apostrophes, and superfluous. full. stops. Via Give, Get, Take, and Have.