Here are some resources for essay writing:

The Salem Athenaeum

http://www.salemathenaeum.net/

The Loft (a Minneapolis/St. Paul writing center):

https://writersblock.loft.org/category/writing_tips_technique__craft/

The Moth

http://themoth.org/radio

Grub Street

http://www.grubstreet.org/

http://www.pw.org/literary_places/grub_street

The Writer’s Room of Boston

http://www.writersroomofboston.org/about-wrob/

Salem State University Creative Arts

http://www.salemstate.edu/arts/2356.php

Massachusetts Poetry Festival

http://masspoetry.org/