A great resource for career information on specific companies and industries is the Firsthand database. Firsthand is a free resource for BYU students but in order to initially gain access to Firsthand you need to create an account and then log in with your email and chosen password. Inside Firsthand you will find reports on hundreds of employers detailing positions, typical interview questions, and average salaries. Starting your search through Firsthand will make finding the careers that best fit you much easier.
The business and economics library has also created internship and job search study guides. Perhaps the best resource for BYU students is the Handshake website through MyBYU. Handshake contains employers specifically seeking BYU students for these positions.
These databases should give you a great start to your career research! You can also log onto our website at http://sites.lib.byu.edu/business