1. If you have already started, you want to know more. As far as I know, the introduction to new astronomy is very good, and the theoretical content is not very difficult. The author took it as an elective course in astronomy at Nanjing University, and more than 20,000 people listened to it before and after. This book has been published in its fourth edition. The author's thinking is very clear and the information content is very rich. I have seen some of them and I am full of praise for the authors.
If you don't want to be exposed to mathematical calculation or physical knowledge, you can choose his other book-astronomy of liberal arts. I've only seen it a few times. It should be good.
There is a mail-order bibliography at the back of Astronomer magazine, which can basically meet your reading needs. In fact, when you have accumulated enough knowledge in the primary stage, you will find that all the introductory books are the same, so you can stop reading similar things.
2. As for magazines, the only periodicals that popularize astronomy are Astronomy Enthusiast and China National Astronomy. Suggest booking the front, practical! The feeling of leisure behind you can be seen and played slowly after you have a higher level, which is very informative.
3. In terms of website, Mufu Astronomical Forum is a good place with strong strength. There are many other astronomical forums that you can visit, such as Tian Wen, which is also very large in scale. There are also many astronomical websites, but I don't understand them. It doesn't really matter. You can find the friendship link of the astronomy forum and you will know that it is near.
4. Some astronomy enthusiasts will start blogs or post them to popularize astronomy knowledge. However, I have a general understanding. I feel that the atmosphere of the post bar is not as good as that of the forum. It is better to take root in the forum!