“Citizens for Global Solutions” (about which, I confess, I knew essentially nothing until today) has posted a contest for interactive fiction dealing with global concerns and their solutions. (That includes human rights issues, global warming, nuclear proliferation, etc.) Their definition of interactive fiction is a bit different from mine, but it sounds as though text-based IF would count among the things they’re looking for.
There are cash prizes ($2000 first place, $1000 second place, $500 third place, plus a people’s choice award). Submissions are due November 17th.
Emily Short's Interactive Storytelling 
This looks like a nice opportunity, and a worthy cause. Wish I had time to write something!
–Jim Aikin
It’s also worth noting that text-only entries seem to be discouraged, although it’s unclear whether this is a rule or just a suggestion: –
“If you are a writer, buddy up with a graphic artist to give your on-line story some image pizazzz”
They further say they’re happy to have other media types not mentioned. My best guess is that they wouldn’t turn away textual IF.
Without doubt the most lucrative IF-opportunity this year. ;)
Nuclear non-proliferation, women’s rights, international peacekeeping… it would be fun to think about how you can put such large issues into the form of interactive fiction. (I suppose Floatpoint is one the few games that tries.)
They certainly haven’t given their readership much time to work on submissions!
Not a lot, no. :) But there might be room for something brief; or this might be a good opportunity to try out something less than fully-parsed IF, like perhaps a work in Twine.