Q:

Learning Piano without a teacher

How can I effectively learn how to play the piano if it is simply impossible for me to get a teacher?
I took it upon myself to learn the piano. However, I am not sure where to start, especially with regards to getting things 'right' (i.e. posture, etc.) and of course actually hitting the right keys and stuff.
My goal is to at least be a semi-competent (hobbyist) pianist.

A:

Effectively, you could learn piano by starting with the basics.
Piano Lessons
First, I would suggest learning the notes on the piano:
(1)
(2)
(3)
(4)
Then learning the intervals:
(1)
(2)
(3)
Then learn some chords:
(1)
(2)
(3)
(4)
After you've learned the notes, intervals and some basic chords, you'll be able to play some (simple) songs you might like. So, just look up for a song's music sheet (or tab).
For the correct posture, take a look at these:
(1)
(2)
(3)
Personally, I prefer books to learn music. That's not really necessary; you could learn online. But I would suggest getting a beginners book for piano. It might help you.

A:

You can use Learn and Master Piano lessions, which is very helpful for learning piano without any teacher and within a very less time. I am learning from it for last 7 months and found it very helpful.

