With the new year around the corner, and recently noticing that Mefites have burned 490,834 calories, traveled 2,364 miles, and lost 378 pounds, I figure it's a good time to ask: Is there interest in some sort of MetaFilter weight loss/exercise challenge? (Meta-fitter? Har. Har. Sorry.) [more inside]
posted by NikitaNikita on Dec 23, 2009 - 79 comments

DARPA Balloon Challenge - Team Metafilter - This Saturday [more inside]
posted by odinsdream on Dec 4, 2009 - 111 comments

Did Metafilter register a team for the DARPA balloon challenge? [more inside]
posted by longsleeves on Dec 2, 2009 - 23 comments

The Darpa Network Challenge: Let's talk strategy. [more inside]
posted by empath on Nov 2, 2009 - 303 comments

Metafilter Runs: RISE FROM YOUR GRAVE! (Anyone up for a run?) [more inside]
posted by Jinkeez on Apr 30, 2009 - 45 comments

Icycle Challenge, 2009 edition: The colder it gets, the higher your score -- this time exponentially -- so break out the long underwear and the studded tires! [more inside]
posted by Chuckles on Jan 1, 2009 - 22 comments

Is there interest in the return of the MeFi Music Challenge? [more inside]
posted by !Jim on May 9, 2008 - 28 comments

I am new to Nike+iPod, and am having fun with it, but I don't know anyone else who has it so I have no one to challenge. What say we (and by "we" I mean you, if you have Nike+iPod and are willing to play along) list our screennames in this thread?
posted by AgentRocket on Jan 18, 2007 - 35 comments

jonmc has inspired me. in thread a while back, he recommended i read a book as a sort of "this is what i think about what we disagree about" retort. i have been thinking about it, and i do intend to get the book (from the library), but only on the condition that he do likewise for me. and then i thought, maybe i could invite some of our more famous meta-adversaries to participate in something like... a sort of tit-for-tat book exchange in the spirit of understanding each others' points of view.
posted by RedEmma on Nov 6, 2005 - 49 comments

Last year and the year before, in May, jbushnell started a MetaFilter thread asking what the coolest thing you could find on the web for X amount of dollars was, and offered to buy the thing he himself deemed "the coolest". jbushnell hasn't contributed to MetaFilter since last October, and May is just about over, so I doubt he plans to show up to post this challenge again. (more inside)
posted by iconomy on May 31, 2002 - 16 comments