What Do You Like in Your Favorite Blogs?

Do you enjoy someone asking for your advice? I hope so, because I’d like to ask what you think constitutes a great blog.  

1. What do you like in your favorite blogs, compelling you to return time after time? 
2. What sets an engaging blog apart from ordinary blogs, making it shine? 
3. What do you look for in blogs you follow? 

Thanks for your input!