Here are some useful online resources for learning about and following astronomy-related topics/concepts.  All of these sites have additional link listings for further research.

1. Sky and Telescope Magazine: https://www.skyandtelescope.com  

2. Martz Astronomical Association & Martz Observatory: https://www.martzobservatory.org/ – Under “Education > Observatory Lecture Series” there’s some good beginner advice, equipment and book reviews.

4. Cloudy Nights: https://www.cloudynights.com – Great resource, with discussion forums, equipment reviews, and classified ads. 

5. The Telescope Review Site: https://www.scopereviews.com – Ed Ting’s website with over 100 telescope reviews plus beginner’ advice. The Beginners’ Advice section is well worth reading and provide the basis for this overview.

6. Rose City Astronomer’s Club: https://www.rca-omsi.org – The Frequently Asked Question section provided the basis for the Stargazing Tips and Etiquette portion of this document. The entire section is worth reading.

7. Astronomy Equipment  Retailers:  https://www.agenaastro.com, https://www.highpointscientific.com