Hi,
I am trying to get my arms around the whole web app space and this helps.
Can we attempt a version 1.1 for this. Here's a reordered list that I feel may help organize stuff. I may have got a few classification titles wrong and there is always going to be a debate of what fits in where.
Regards,
Ravi
Core Frameworks
jQuery
YUI
Zepto 
MooTools
Dojo
ExtJS
 
UI libraries
jQuery UI
Wijmo
Kendo UI

BoilerPlate
HTML5 Boilerplate
Bootstrap
 
Architecture 
Backbone
Ember.js
 
Utilities
RequireJS
Modernizr
Underscore

 
Developer Tools
Git
Sublime Text 2
JSBin
JSFiddle
dabblet
 
CSS Tools
SASS
Less
Compass
-prefix-free 
 
Testing tools
Jasmine
Qunit
Mocha 

Build tools
Grunt
 
Templating Engines
KnockoutJS
Handlebars
AngularJS
 
Languages
Coffeescript