teenager posts

Anyone know or think they might be able to identify the font for Teenager Posts and so-relatable images. Here is an example of the font http://www.flickr.com/photos/76343955@N05/8165649985/lightbox/, or you can visit the website to look at the fonts used on the images.
www.teenagerposts.tumblr.com
www.so-relatable.tumblr.com
I've looked everywhere to no avail so be great if you could help me! And I'm pretty sure it isn't helvetica or arial, although it could be a variation?

Syndicate content Syndicate content