Haha, your father-in-law is really elegant. It's really good for old people to like writing articles, and they can also exercise their thinking. I support and admire him. Naturally, your father-in-law belongs to the elderly. If you contribute online, you should also look for that kind of website about the elderly. I know a website specially built for middle-aged and elderly people. This website is called "Beijing Happy Sunset Culture and Art Exchange Center". There are many columns that can be submitted, such as flowers and birds, fishing paradise, health care, sunset food, donkey travel in the world, investment and financial management, station service agency, Shi Kuang Lunxue, sunset garden and so on. Here, the elderly can express their feelings and talk about health care, hobbies and food. It's really good for old people to have time to write short articles, which is also good for their health. It can relieve loneliness, exercise one's own thinking and open up new ideas. My friend, you can see the website of Happy Sunset by searching for the keyword "Beijing Happy Sunset Culture and Art Exchange Center". Finally, I wish your father-in-law good health and long life.