Purpose of A Blog

So i was asked the other day why i keep a blog..the person said to me, "it's like keeping an online journal"..and my response was, "well, that's IS the reason why i blog..it's to keep an online journal"..and they said "but everyone will know what you're thinking"..and i was like, "well, duh"

the reason one blogs is to express their thoughts and feelings..to write things you don't usually say in day to day conversations..it's an online journal because you're writing about details of your life or what you're feeling..and of course, you wouldn't write things you didn't want people to know about..so it's personal, but not too personal..

another reason to blog is to keep others up to date with your life..people whom you don't have time to talk to a lot or people who you don't see a lot..

and i suppose the purpose of keeping a blog is also just for fun in a sense but it does have it's real purposes..agreed?