What is the importance of Grammar and Spelling in SEO factor?
Grammar and Spelling is one of the important quality signal in evaluating the content and site quality. It is must to use grammatically correct structured sentence and correct spelling in the documents.
Matt Cutts gave a mixed messages in 2011, about Grammer and Spelling:
"I certainly try to pay attention to spelling and grammar, may be not necessarily for the search rankings directly, but because its a good experience for the users"