I didn't need to Google. I just read a profile on Gary Johnson a week ago. It's good, and it might make you like him more:
http://www.newyorker.com/magazine/20...arty-candidate
Libertarianism is not at all like socialism, though. Bernie Sanders and Johnson agree on many social issues, but their ideas on domestic and international policy are massively divergent. And as easy as it is to vote based on black-and-white agendas like abortion rights, drug laws and gun control, those are not the most important issues that a president has to deal with.
Johnson and the Libertarians want to privatize all forms of health care and repeal a large chunk of social security. Sanders and the left-most side of the Democratic party want to massively increase those rights.
Libertarians want to dramatically reduce our efforts in organizations like NATO and the UN. Leftists are perhaps a bit divided on that issue but definitely recognize the value of those two organizations.
Libertarians want to create an environment where business owners are less inhibited. Leftists want to protect the employees of those owners, recognizing that most Americans are not business owners.
It's fine if you're Libertarian, but Johnson and Sanders are not running on even similar platforms.