HTML5 Canvas - http://en.wikipedia.org/wiki/Html5_canvas

JavaScript Framework (JavaScript Library) - http://en.wikipedia.org/wiki/JavaScript_framework

MOM - http://en.wikipedia.org/wiki/Message-oriented_middleware

SVG - http://en.wikipedia.org/wiki/SVG

OpenGL - http://en.wikipedia.org/wiki/OpenGL

WebGL - http://en.wikipedia.org/wiki/WebGL

WebSockets - http://en.wikipedia.org/wiki/WebSockets

Web Workers - http://en.wikipedia.org/wiki/Web_Workers

VNC - http://en.wikipedia.org/wiki/VNC

RDP - http://en.wikipedia.org/wiki/Remote_Desktop_Protocol

Web API - http://en.wikipedia.org/wiki/Web_API

API (General) - http://en.wikipedia.org/wiki/API

AMQP - http://en.wikipedia.org/wiki/Advanced_Message_Queuing_Protocol

Message Broker - http://en.wikipedia.org/wiki/Message_broker

Message queue - http://en.wikipedia.org/wiki/Message_queue

XMPP - http://en.wikipedia.org/wiki/XMPP

Google Guide

OnLive - http://www.onlive.com

Quake Live - http://www.quakelive.com

Cloud9 - http://cloud9ide.com/

CodeRun - http://www.coderun.com/ide/

ShiftEdit - http://shiftedit.net/

Office Live - https://office.live.com

Photoshop Express - http://www.photoshop.com/tools?wf=editor

Sketchpad - http://mugtug.com/sketchpad/

Cloud Canvas - http://www.cloud-canvas.com/index.php

deviantArt muro - http://muro.deviantart.com/

AutoCad WS - http://www.autocadws.com

ECCO - http://ecco.sourceforge.net/

iPhone Apps

Evernote - Download here