1) Landing page sites no longer pass master with Google. Instead of just a landing page, you must now build an entire site around each root keyword (or family of keywords) you've targeted.

2)  Each site will need to have 25-50 pages of good content, all focused around the same set of keywords you have targeted.

3) Your site must deliver a good experience to your visitors.

4) Putting video on your site will make your visitors stay longer on your site – that is, will increase your site’s “stickiness” and increase your "Quality Score" with Google.

5) While this is a lot more work than it used to be, if you do this right, the upside is your site will rise rapidly in the Google’s organic search list, which is free – for the keywords you’ve targeted.