KEYWORD SAUCE

The internet [marketing] is like the story of the two hikers
on the mountain trail that run into a ferocious bear (guru internet marketer ).
One hiker starts to panic and turn in circles wondering what to do
while the other calmly sits down on a stump and removes his running shoes from his back pack and replaces [...]

The only way to tell which keywords work best is to test them. While it is not prudent to try and test every single keyword in a niche, you do have to test the group of keywords you believe will produce the best for you before you start a campaign.
So, that leaves you with question [...]