One of the best things to do here on P-F is go into Mindset & Tactics as well as Marksmanship & Gun Handling sections, sort threads by "Replies" and read the most popular topics. Tons of good information. You'll also stumble across various links and references, which dig deeper into the subject matter. There is literally no end to the copious amounts of quality information funneled through P-F.
I've been here for years, but I still do this pretty often because I manage to find a new rabbit hole every time I look.
ETA: Also, many of our active members have websites/blogs, and links can often be found in their signature lines or referenced in various posts. They're well worth saving as bookmarks and visited frequently. Go read all the
Rangemaster Newsletters, they're packed with gems. It all makes me wonder why anyone would sit on FB or twitter for hours only to walk away having learned what Suzy had for dinner and what color Prius Dan just bought.