These eresources are a good starting point for your research, as well as a place to find overviews of major writers, literary movements (eg. romanticism), genres (eg. gothic novels), periods and detailed definitions.
The journal mETAphor is published by the English Teacher's Association NSW. Find full text articles through Informit database by entering the journal title in Citation Search. Whilst published for teachers, the journal has many relevant articles for HSC students, including close analyses of texts and genres, creative writing skills, essay writing tips, and a wide range of useful book reviews from many different genres.
Watch your spelling – both for accuracy and American spelling variations.
Not all reference books can be found on online, so browse the reference shelves on Lower Ground 2 from Dewey numbers 808 to 890 to find guides, dictionaries and encyclopaedias such as the following: