For me, Pinterest is to inspire - outfits, meals, places to visit - and Tumblr is to entertain - it's one of the few things that I will actually laugh out loud at.
My Pinterest boards
I mainly use Pinterest for inspiration on what outfits to put together, new recipes to try and an absurd amount of daydreaming about backpacking around the world to fairytale style destinations. There are the typical wedding boards, home boards that I will never achieve and a seriously overpriced wishlist, but there's realistic inspiration in there as well.
Basically, if you have a passion for pretty much anything - girly, pretty, hipster ideals are more prominent - then you'll easily get lost in the endless boards of those you follow or the 'popular page'.
For people that don't know what Tumblr is, I like to explain it as been a primarily image and gif based rolling feed. There's never a moment my feed won't be updated (this may be down to the 300+ blogs I follow). The mood behind it is akin to a modern MySpace... In my opinion. Which is why it's such a good place to escape.
If you're confused at the mood, click through the #FunnyTumblrPostNight mentions on Twitter. The Tumblr commentaries are the main reason for literal LOL on that site.
Yes, you can stylise your Tumblr page, just like anything else. But for me, it's more of a reflection of my current life, my mood and some things I try to share with people to laugh at... That they will never get.
I could share endless highlights from either, but one that always sticks with me. One that I actually cried at (this is where you won't get it unless you're in the fold)...
Come join me!