Modern Reformation is a bi-monthly magazine covering serious topics in apologetics, theology and culture. It is written at a level that is beneficial and accessible to theologians, pastors and laymen. The site hosts plenty of online articles on topics such as apologetics and evangelism, Christ and his work, grace, justification, santification, creation, the church, sin and the Trinity. Contributing authors include Michael Horton, R.C. Sproul, Robert Godfrey, John Piper, Jerry Bridges, Kim Riddlebarger and many more.

http://www.modernreformation.org/