I'm actually excluded from many of the private groups because I write a blog, so I miss out many of the secret deals early in their existence.
My personal philosophy has always been if you tell me to keep something quiet and off the blog I will until it is outed somewhere else, then it is fair game for all.
But they always come out. It is just a matter of time. The only thing we can do is be somewhat discreet. Personally not as tight as the trick it forum, but there is nothing wrong with making a rookie work for it a little bit.