What are the ways of deep learning Google Apps and various APIs?

Question

Google

Interested in blogs, books, seminars, conferences. Most of what I've found on the web are very entry-level presentations or copy-pasted official news.

There is a good book " Secrets of Google Applications ", but also relatively basic.
There is a Google help.
There is a blog www.googleapps.ru
In November there will be Google Developer Day .

I would like high-quality information about different services and APIs, about their interaction, areas of application, best of all in the form of face-to-face training with questions, etc. Books/blogs are good too :)

Answer 1

As the author of the mentioned book "Secrets of Google Applications" I would venture to offer a few links.
1.Google operating system . An unofficial blog about updates from the world of Google. There are no API and programming details here, but it helps to keep abreast of the latest news, including unofficial information leaks and rumors.
2. Google Blogoscoped . Another unofficial blog from Philip Lessen, author of Google Apps Hacks.
3. Google IO 2010 . The site of the conference of the same name with a large number of videos , including very, very technically advanced reports.
4. This Week in Google A weekly podcast about Google and the cloud in general.

Answer 2

>Google help available.
In my opinion, it is quite enough for "deep learning". Read everything quickly to get an idea of ​​the possibilities, come up with a project that uses these opportunities and start implementing. At least that's my approach.