Please take a look at the Republican Liberty Caucus Mission Statement that JimRob posted. It sums up the tenets of small-l libertarianism quite well.
Just read it. I have no argument with any of what's there. I'm a social conservative, though, so for me a few hot-button issues aren't addressed. I want the right to life of the unborn and the aged and infirm safeguarded and traditionl marriage defended.