The phrase "quick lowdown" means to give a brief and concise explanation or summary of something. It is used to provide a quick overview or essential details about a topic or situation. Full definition
Quick lowdown on affiliate links This post is about affiliate marketing, but it's something that authors should be doing on your author website in order to add another source of income to your business. (FictiveUniverse.com)
For a quick lowdown, here's some info on common breakout zones, along with their likely causes: (health.com)
You can get the quick lowdown from a couple of articles I wrote for Publishing Perspectives and for Porter Anderson's FutureBook column. (thefutureofpublishing.com)