Post-secondary institutions develop online writing resources to assist students at any stage in the writing process. They provide tips on everything from how to find an essay topic to how to write a bibliography and cite according to an academic documentation guide.
These resources are only beneficial if you read them with purpose. You should consider whether your course's expectations match with each guide's specific practices.
Although many websites have useful and accessible information on writing, the resources developed by post-secondary institutions are the most relevant to writing in an academic context.