Funky MBTI Fiction is a nice Tumblr, but the author does mistype a few characters (this is my opinion). An example would be Sherlock Holmes from 'Sherlock' being typed as an ESTP as opposed to an INTP/J . They did have a good explanation for the typing ,though, so it might be acceptable to many.
In all, it's fun and original, so I do like their analysis.
I think she mistypes certain characters (Charlie, Morgan from Criminal Minds, etc.), but overall I like this blog a lot. To me, it's main use is to share people's opinions on the characters to jump start your own typing of the character. I don't think anyone thinks their opinion is the be all and end all but this blog has extensive typings that could influence how you see characters and sharpen your typing skills.