The Grey Labyrinth is a collection of puzzles, riddles, mind games, paradoxes and other intellectually challenging diversions. Related topics: puzzle games, logic puzzles, lateral thinking puzzles, philosophy, mind benders, brain teasers, word problems, conundrums, 3d puzzles, spatial reasoning, intelligence tests, mathematical diversions, paradoxes, physics problems, reasoning, math, science.

jesternl · Yankee Doodle Dutchie

Well, that is probably the worst and most nondescript title ever for a post, so I'm open to suggestions.
Anyway, I came across this website, listing long(ish) articles from magazines, both current and old, which are worth reading.
It also provides some tools to save the articles for later reading on Kindle/Iphone/other reader of choice.
LongForm.org
I figured some people here might like it, I've found a bunch of articles already that I'd like to read.

In similar vain, here's a list of 100 great magazine articles:
100 great articles