3. Set your pre-search filters. Depending on whether you are looking for a new niche to build a site around or trying to find keywords to target on your already existing website, the minimum amount of local monthly searches (LMS) you set might vary. For new niches my LMS criteria is 1,500-5,000 searches, for posts anything from 10-800 is fine. Also, depending on one of these goals you can add a lower or higher number of words in the respective filter: for new niches 3 (or, at times, 2) words minimum, for new posts from 3 or 4 words up.

6. Filter by KC and sort your list. Like some of the other filters you can input a minimum and maximum amount in the KC column and sort by that. Some people prefer to sort ascendingly to do their analysis from the easiest to the toughest keywords. For a new site try to find keywords with KC equal or under 20 or 30. Despite the super helpful KC score, you should further analyze your best looking keywords individually to be sure they are good to go. So click on them to check your top-10 competitor sites and pages.
As for the history of the company, as I explained, I created Long Tail Pro back in 2011.  At the time, I was creating tons of niche sites and was doing alot of keyword research and content creation.  I was trying to figure out what types of keywords would rank quickly in the search engines, specifically Google, and I was frustrated with the other keyword research tools (in particular Market Samurai) out there.