Doxory?

nelhage has decided Since both are now probably an option...

OLPC!

Asked 3 years ago

I picked something else

Intern at Google

lakmiseiru
What do you want to do later in life? Google is probably going to be more crazy, and if you want to work there in the future or are considering CA as a place to live, go for it. On the other hand, if you want to do research for the rest of your life, I'd pick CSAIL.
kyrandil
UROP is another word for slave wages.
Mark
If you're *really* academic track *and* you find a urop with relevant connections, do it. Not that google will be "real world" but you'll probably meet a broader range of interesting people...
paigep
Dude. Google.
geoff
There will be plenty of time for academia when you are dead.
jmorzins
Intern at FOO is usually useful, for most values of FOO.
quince
products >> research
tibbetts
There is something to be said for working at google during the heyday for at least a bit of time.

coolworld, peggusus, seph, trs, Ian, roy, ntn, ternus, photon, erin, aufrank, curious79, cshiley, perturbed, stardust9121, glasser, buddywiser36, kilroi, shadow, eisenbud, jake, beppu, templar781, djdrue, Richie, garfieldfreak123, rowr_grl, ManWorkingHere

UROP at CSAIL

kevinr
If you want to mEng, the UROP is perhaps better (though you've got another year). Google is shiny, though.
aletta
do both at some point.
Yoyo
You should UROP at least once.

jesse, Alex, sauergeek, dzm, jibsheet, zellia, ctsims

Skipped (with comments)

jtu
Do you want to go to grad school or industry when you graduate?
kzinti
Do what would make you happy. Do something you love, and the money will follow.

If you make a stupid choice because a website tells you to, it's your own damn fault.