I don't know from Gnosticism, but I like much of what Jordan Stratford, "an ordained Priest of the Apostolic Johannite Church," has to say in this interview on Tim Boucher's site. Here is a taste:
When I say that Protestantism is Spiritually bankrupt I mean that it’s evident that the Spirit has abandoned it. It’s anemic, suburban, vapid. The spiritual Geiger counter doesn’t tick there. There is no deeply resonant myth in guitar masses, big screen tv’s, mega-church mega-missions, or applied pop-psychology. All those smarmy websites with picnicking shampoo-and-conditioner couples holding up babies or golden retrievers in the sunshine. Only those traditions which are sombre, iconic, and dimly lit create space for Hermetic reflection and illumination. Glossalalia, interpretive dance masses and Kumbaya are just embarrassing for everybody. And if your congregation is larger than your high-school grad class, flee.
The whole interview is very smart.
Also, from Stratford's blog, the Seven Principles of Cosmic Spirituality, with which I'm totally on board:
1. The entire cosmos is the manifestation of Divine Mind—every molecule, every cell, every creature, every rock, tree, mountain, planet, blazing star, whirling galaxy and universe of galaxies.
2. We are all an integral, interconnected part of the whole cosmos and our own inner world is a holograph of the cosmos within us.
3. One basic datum underlies every religion under the sun, the principle of Incarnation. The Word or Logos, God’s self-expression made manifest, has given the light of its divine spark to every mind/soul coming into the world. Christians call this the Christ or "Christ in us." Other faiths have different names or modes of expression for this same inner reality.
4. Every religion whose ethical core is summed up by the word "compassion" or "loving-kindness" to all other creatures without exception has a vision of the truth and is a valid "way" to Transcendence.
5. No one faith or religion—whatever its claims may be, alone has The Truth.
6. True cosmic spirituality is steeped in, flows from, and derives its most powerful analogies and metaphors from the natural world – from the tiniest bit of dust to the spiralling stars above.
7. The core aim of cosmic spirituality is radical transformation, both personal and societal.