1. **National Renewable Energy Laboratory (NREL)**: NREL is a leading research organization that provides in-depth information and articles on solar energy technologies and developments.


   Website: https://www.nrel.gov/


2. **Solar Energy Industries Association (SEIA)**: SEIA is a trade association that focuses on promoting solar energy. Their website often contains articles and reports on the latest trends and news in the solar industry.


   Website: https://www.seia.org/


3. **Renewable Energy World**: This online publication covers a wide range of renewable energy topics, including solar power. They regularly publish articles on solar technology, policy, and industry trends.


   Website: https://www.renewableenergyworld.com/


4. **The Guardian's Environment Section**: The Guardian newspaper's environment section often features articles on renewable energy, including solar power developments and policy changes.


   Website: https://www.theguardian.com/environment


5. **CleanTechnica**: CleanTechnica is a well-known source for clean energy news and analysis. They frequently publish articles on solar energy and its role in the transition to cleaner energy sources.


   Website: https://cleantechnica.com/


6. **Scientific American**: Scientific American often covers advancements in renewable energy technologies, including solar power. Their articles tend to have a scientific focus.


   Website: https://www.scientificamerican.com/energy/


You can visit these websites and use their search functions to find specific articles on solar energy that match your interests or requirements. Additionally, you can also explore academic databases and journals for more in-depth research articles on the subject.