Don Carson recently said that the internet represents a "triumph of pooled ignorance". But there is some good stuff out there in blog-land. Check out these links:
Martin Downes talks to Tom Schreiner about penal substitutionary atonement:
In my place condemned he stood, here.Paul Helm has published two new posts for July:
N.T. Wight's ordo salutis here.
Samuel Rutherford and the limits of toleration here.