To grow your business, you need good data that you can analyze and from which you can draw insight. Although Google Analytics can provide you with a wealth of information, you will discover the most useful data through segmentation and custom reports.
If you've got some blog posts with decent traffic but a high bounce rate, this once hack could make all the difference. Offer them something a content upgrade that's r specifically related to the post they're reading. It can be a checklist, a report, an ebook or anything else. As long as it has perceived value and relates to the post, you'll get conversions and a lower bounce rate.
This article is an excellent interview with Andrew Chen, a godfather of growth, that's full of useful insight. If you read just one post this week, make it this one.
This slide deck is from Morgan Brown's presentation at the Virtual Growth Summit on the five stages startups pass through on their way to breakout growth.