Another great resource that I recently came across is Time’s business tip of the day! It looks like they post almost every day with new ideas on hiring, growth, management, and much more.
Another really great blog/website to follow is entrepreneur.com. When I started my first business I practically lived on this site. Some of the recommendations and posts can be pretty high level and watered down, but given that they have articles on just about everything, it can be a really great starting point when you are wanting to explore a new area of your business (marketing, coding, management, fundraising, etc.).