Linux Foundation was created in 2007.
You can find online linux training at this website. They do training right from The Linux Foundation: http://go.linuxfoundation.org/linux-training-from-the-linux-foundation?pi_ad_id=6823530394&gclid=CJiEr9mZ9akCFYrJKgodNSLevA
The developers of the Linux kernel are volunteers. The Linux Foundation sponsors these developers so they can be independent.
Linux does not have a "manufacturer." Linux development is guided by the Linux Foundation and Linus Torvalds, with contributions from thousands of companies and individuals.
Generally accepted to be the Linux Foundation, which is located in San Francisco, Tokyo, and Seoul. However, Linux development is such that Linux itself is not really developed in any one place. Every Linux distributor is headquartered somewhere else, and most contributors to Linux aren't part of the Linux Foundation.
Linux For You was created in 2003.
Linux Format was created in 2000.
Linux kernel was created in 1991.
Linux-Magazin was created in 1994.
Nero Linux was created in 2005.
Linux Journal was created in 1994.
Lunar Linux was created in 2002.
Linux India was created in 1997.