I'm looking for information on Toyota adopting the Linux operating system.
Start your search with the ABI/Inform database found on the Business Research Guide http://library.uhd.edu/business. Type "Toyota" into the first search box and select "Company/org" from the drop down menu. Type "Linux" in the second search box and click Search. The Business Source Complete database will also allow you to limit your search by company. Again, you will need to choose "company" from the drop-down menu.
You might also try searching some newspaper databases. From the Business Research Guide, go to the "Business News" tab. I suggest you search the Wall Street Journal and Infotrac Newsstand.
Also I found this news release from the Linux Foundation: http://www.linuxfoundation.org/news-media/announcements/2011/07/toyota-j oins-linux-foundation