##What is a Blog?
Blogging means writing and publishing online.
As the name comes from "weblogging", you can log any thing online.
either your experience on something, your achievement or your failures. Blogs are simply websites.
blog can also be interlinked, which means one can link another blog to them. (redirecting)
blogs should be updated frequently.
##Why one should log a data?
logging in any form creates a documentation, which can be referenced in the future.
Blogging not only gives a recall and better understanding of the content you already know, it also helps others to learn from your experience.
As Richard Feynman a Nobel prize-winning physicist says, explaining your understanding in simple terms help you to get advance in the topic.
after publishing you get a digital log of your experience, which can be reviewed any time you want.
the best part is you can earn a decent amount of money from it.