Stand to Reason: A great website with numerous resources. The site is updated daily.
The Christian Apologetics Alliance: Numerous contributors covering a wide range of topics. The site is updated regularly, but not daily.
Reasonable Faith: The website of William Lane Craig, who some may consider as the prince of Christian apologetics.
Ravi Zacharias International Ministries: The website of Ravi Zacharias. A brilliant man with a quick wit and remarkable communication skills.
Cross Examined: The website of Frank Turek’s ministry. I have particularly enjoyed the weekly podcast.