URI and URL reference pages

Uniform Resource Locators (URL) - IETF RFC 1738

Uniform Resource Identifier (URI) : Generic Syntax -  IETF RFC 3986

Guidelines and Registration Procedures for new URI Schemes - IETF RFC 4395

Uniform Resource Identifier (URI) Schemes - IANA registries (based on IETF RFC 4395)

Wikipedia URL reference

Wikipedia URI reference

Wikipedia URI Scheme reference

Internet standards organizations

IANA -  Internet Assigned Numbers Authority

IETF - Internet Engineering Task Force

W3C - World Wide Web Consortium

JAVA reference pages

Java SE API docs

Java SE technologies

Java SE documentation

Java SE tutorial

Java EE API docs

Java EE technologies

Java EE documentation

Java EE tutorial

Java.net page

Java Community process page

Apache Commons page

Netbeans IDE documentation

Eclipse IDE documentation

Backend as a service providers

App42

Parse

BaasBox

Kinvey

Institutional Youtube video channels

StanfordUniversity

UCBerkeley

UNSWelearning

Richard Buckland

Harvard University

MIT OpenCourseWare

NPTEL

TelerikAcademy

Coderisland

Video training pages

Lynda

VTC

TTC

Total Training

Pluralsigth

Adobe TV

Parleys

Unity3D Unite videos

Apple WWDC videos

Digital Tutors

Android reference pages

Android developer pages

Google developer pages

Google code project hosting

Android developer help

Android tools pages

Android open source project pages

Android GrepCode sources

Android developer blog

Android developer Youtube channel

Google developer Youtube channel

Google Play