I'm quite new to Tumblr. I say quite, because I've had it for a few months but I don't really know what I'm doing. The thing I'm most confused about are the ___blrs. Studyblr, Bookblr, Writeblr.

I know what they are, but I'm confused about what to do with my page. I want to make a Writeblr, but

a) What features make up a Writeblr? Types of posts?

b) Is it OK to post one-shots and flash fiction on a Writeblr?

I've googled this stuff, but I've gotten nothing. I would appreciate some help :)