Two sets of lectures are now online.
The first is the Eric Symes Abbott Lecture, given at Westminster Abbey by Peter Selby. It is about Mis-establishment. But anything by Selby is worth a look.
The second set is Sarah Coakley's Gifford Lectures. This is a very prestigious series, and normally one has to wait and buy the book. I remember Sarah Coakley's lectures on feminist theology from Oxford days, What impressed me then was the way that prayer formed an important part of what she was teaching.