If you have not heard of or read anything by Scot McKnight he is a brilliant New Testament theologian who's material is well worth reading. He has written a stack of books, of which I've read, The Blue Parakeet, Fasting, and One.Life. All were outstanding. I know that his A Community Called Atonement is brilliant as well.
Scot's blog is called Jesus Creed - Exploring the Significance of Jesus and the Orthodox Faith for the 21st Century and is well worth following.
His latest post is on our need to not just have a Good Friday gospel and be Good Friday Christians but rather to have an Easter gospel and be Easter Christians. Have a read here.