Been leaning Libertarian for many years, I almost voted for Ed Clark in 1980 and I will probably vote for thier nominee in 2004.
No they aren't. Both libertarians and greens are socially liberal.
I'll have to politely disagree with you on that I've been pretty much a social conservative most of my adult life and as stated above have been drawn toward Libertarians that whole time. Republicans seem to be much more drawn to the Libertarians than liberals.
I think the difference is that whether you are a social conservative or socially liberal, you are a libertarian if you do not believe in using the government to stuff your beliefs down peoples throats. This is a real problem with the left in this day and age.