[TheFreim]

I journal offline in a notebook. It's not "rewarding" in a monetary sense, but I still enjoy it and find it to enhance my life. A blog is similar in that it's like a journal except you can send it to people and get input in response.

[lbriner]

There is a slightly different motivation when writing for the public. I have to take a bit more time to make things read well and clearly and this can help my general communication skills.

Engineers are often introverts and many can struggle communicating easily the ideas that they understand entirely but which are complicated. Blogging is a good way to challenge that and force you to abstract something well enough to explain it.