Hi,
I've been following developments in the area of bitcoin (micro)-payment channels about ever since the concept was first put out there. At present, the work is dispersed and there doesn't seem to be a collated repository of everything that is happening in this important development area. So I've started one.
https://github.com/utxo/wheels/wikiTo get started I've put a cache of links I've been accumulating in the wiki and will keep adding to it. It is probably not comprehensive so please submit github PR or links in this thread if you know of a payment channel project. We are now seeing enough activity that extra benefits for all can be had by having a reference repository, imo. As a nod to the hub-spoke model for payment channels it is called "wheels".
Longer term if there is development for pay-chan standards protocols or reference implementations it might make sense to host them as open source in this repo and I am happy to contribute in whatever way towards achieving that as the need arises. Also am open to any other sensible suggestions as to what a community reference repository for payment channels might be used for, protocol spec. development, security review, testing tool development, etc.
Looking forward to comments/feedback.