The Cheat Sheets' Cheat Sheet
It is really hard to get your mind prepared for all the languages you learnt, especially when you haven't been using lots of them for long.
I guess for natural language students, that would be a big problem. Although few ones will have to know quite a many natural languages...
But as programming language/technology learners, one of our missions is to make laziness a virtue, and... we are lucky to have those cheat sheets to help us do part of the job.
Here is a list of collections of tech cheat sheets, which, in my opinion, can be called """the cheat sheets' cheat sheet""" o(∩_∩)o...
TechCheatSheets.com
Cheat-Sheets.org
RefCards.com
'Cheat Sheet Index' on scottklarr.com
'Cheat Sheet Roundup' on petefreitag.com
'Cheat Sheet Round-Up' on smashingmagazine.com
'Cheat Sheets' on addedbytes.com
'Quick Reference Cards' on digilife.be
'Our Favorite Cheat Sheets' on whatis.techtarget.com
Cheat-Sheets.org
RefCards.com
'Cheat Sheet Index' on scottklarr.com
'Cheat Sheet Roundup' on petefreitag.com
'Cheat Sheet Round-Up' on smashingmagazine.com
'Cheat Sheets' on addedbytes.com
'Quick Reference Cards' on digilife.be
'Our Favorite Cheat Sheets' on whatis.techtarget.com
If you know some other good cheat sheets collection, just leave a comment below. Enjoy it~