Articles
http://not-just-a-tester.blogspot.in/2013/11/selenium-interview-questions.html
http://www.softwaretestinghelp.com/selenium-interview-questions-answers/
http://toolsqa.com/selenium-webdriver/selenium-interview-questions-part-1/
http://www.guru99.com/top-100-selenium-interview-questions-answers.html
http://www.geekinterview.com/Interview-Questions/Testing/Test-Automation
http://www.techbeamers.com/latest-selenium-interview-questions-and-answers/
http://www.software-testing-tutorials-automation.com/2014/01/selenium-webdriver-interview.html
Videos
https://www.youtube.com/watch?v=Xe3ertIS4wA