Hello PSiBeR. :hello: It's great to have you here at Android Forums.
You've come to the right place to learn more about your Galaxy S3. The folks that in the SGS3 section that Digital Controller linked, should be able to help with any questions you have on it.
Of course there's much more here at AF, so take a look around, and if you have any questions, please feel free to ask. We'd be happy to help.
Enjoy your time here at AF, and happy posting!