'Study in' websites
http://www.studying-in-germany.org/
Contains detailed and accurate information about Studying in Germany, this website is also translated into 10 different languages.
http://www.germany-visa.org/student-visa/
Contains detailed information about Germany Student Visa and requirements
https://www.mastersdegree.net/masters-degree-germany/
Contains comprehensive information about a Master's degree in Germany
https://www.arbeitsagentur.de/vor-ort/zav/content/1533729980311
Study guide (in English)
https://www.germanyhis.com/health-insurance-foreign-students-germany/
Contains detailed information about Germany Health Insurance for Students