Question: I was recently speaking with my manager, who stated that while my work is satisfactory, they've been noticing I'm spending a lot of time of Stack Exchange. I find Stack Exchange to be very informative and helpful in my work.

Particularly considering this Stack Exchange site has many users who spend a large portion of their time on here, how can I explain to my manager how useful Stack Exchange is for me?

Answer: 
As [joe-strazzere](https://workplace.stackexchange.com/users/7777/joe-strazzere) said in his comment here:

> 
> @Walle - your manager is hinting that you are spending too much time
>  on non-work stuff. So far, the only response you have is that "it has
>  many useful facts". If you can't do better than that, you would be
>  well served by simply avoiding Stack Overflow and other StackExchange
>  sites during work hours. Get your useful facts at home.
> 
> 
>
Looking up answers to work problems is one thing, but answering questions, commenting, etc. are really just a form of socializing which your employer has the right to say "do it on your own time".

Sure, you're creating value *in general*, but if it's not directly related to your job, then it's not really justifiable.