When you have a twitter account you can do a basic search such as "writing" or "poetry" and retrieve a list of many accounts associated with those subject. You can follow those accounts such as Writer's Digest has a twitter account.
WD tweets articles, interviews with authors, classes, book sale offerings, writing tips. So from an educational aspect it's beneficial. You may also set up your twitter account to your website that has some of your writings to promote your writing.