I read what the main site said about collective dreaming, and i can tell you from personal experience that it is very real. I have an identical twin brother (which may help establish some sort of link) but when we were young (5 years old or so) we would decide on a fun place to go in our dreams (roller skating, swimming, bowling,etc.). When we both awoke, we could both say exatcly where we went, descriptions of people there, and both could remember certain events that happened there (once my brother got into a fight with a kid at a rollerrink in a dream). It was very cool, but no longer happens because we are older and stopped this practice.

If anyone has any questions about my brother and I's experiences (happened more than once) feel free to reply with a question. If you have any sort of other information on this phenomenon, PLEASE post.