Ada95 Lovelace
This tutorial assumes that you have had some exposure to some other algorithmic programming language (such as Pascal, C, C++, or Fortran). This tutorial will explain the basics of the Ada computer programming language.

Introducing Ada
A brief introduction that shows you the basic structure of an Ada program and provides a couple of Ada programs that are ready to be compiled.

C/C++ Programmers Ada Tutorial

A dummy's guide to object-oriented programming in ADA95
A brief introduction to Ada 95.

Learn Ada on the Web (LAW)
Major part of the material is a pre-publication copy of the second edition of 'Ada: A developmental Approach', which has been published by Prentice Hall in 1996.