The Writing Associates Program recommends these online resources.
For help with citation, you can't do better than OC's library's links. See "Citation Help."
The Purdue OWL offers a wealth of resources, from mechanics to academic discourse. Make it your first stop for many questions! Click on the links below for more great links -- the descriptions should help you find what you need.
For help with editing and proofreading, Oberlin students have free access to Grammarly Premium. Sign up for a Grammarly Premium.
Applying for a job or internship? Connect with OC's resources on cover letters, resumés, and application.
And here are some resources For Writing/Speaking Associates.