An Introduction to Google Adwords.
We have compiled a list of useful introductory videos provided by the Google Channel on YouTube to help you to understand and use Google Adwords.
Watch Introductory Video (Total Play Time 3:39)

Google Adwords Success Stories.

Success Story: Mobile Demand
Watch Video (Total Play Time 3:34)

Success Story: Happy Hound
Watch Video (Total Play Time 2:13)

Success Story: Carolina Rustica
Watch Video (Total Play Time 2:21)

Visit the Google Adwords Learning Center.
Google has a comprehensive learning center which has over 50 short presentations divided into 9 sections. Presentations range from 2 to 10 minutes depending on the depth of the topic.
Visit the Learning Center