I have found a number of interesting audio podcasts On the Secular Buddhist Association's website.
One podcast has left a particularly strong impression on me. This is the one by John Peacock on the cultivation of friendliness, Metta.
Peacock puts the cultivation of friendliness on an equal footing with the cultivation of wisdom. I have found in my own experience that the cultivation of Metta is as effective and as powerful as the cultivation of wisdom. My world has transformed with Metta practice. It's a much happier place.
Peacock recommends practicing Metta as an insight practice—not as a concentration practice as I had been taught at Spirit Rock. This small shift from concentration meditation to insight (listening) practice made quite a difference for me.
Peacock's talks presume some familiarity with Buddhism, but I hope that even relative newcomers might find these talks well worth listening to.
Here's the introduction to the talks on the Secular Buddhist Association's website:
In much contemporary Buddhist teachings, the paths of the heart are often relegated to second place behind the primacy of Wisdom on the path to awakening.
In the earliest texts, however, the Buddha appears to consider the cultivation of kindness and compassion as a fully viable and equal path to awakening, to enlightenment, to Nibbana. This will be the premise of the morning’s discussion.
Link to Peacock's Talks
Link to Secular Buddhist Association