I learn quite a lot of stuff from Uber blog as there's so many contents about LBS. Multinational tech firms #1. Microsoft https://techcommunity.microsoft.com/t5/custom/page/page-id/Blogs #2. Google https://developers.googleblog.com/ #3. Amazon https://developer.amazon.com/blogs #4. Uber https://eng.uber.com/ #5. AirBnB https://airbnb.io/ #6. Facebook https://developers.facebook.com/blog #7. Netflix https://netflixtechblog.com/ #8. Instagram https://instagram-engineering.com/ Korean tech firms #1. NAVER D2 https://d2.naver.com/home #2. Woowabros https://woowabros.github.io/ #3. Kakao https://tech.kakao.com/