Oranges Are Not the Only Fruit is the story of Jeanette, a young woman raised in an intensely Christian household where she is indoctrinated by parents who believe firmly that the apocalypse is nigh. Jeanette is alienated from her fellow children in school, then disconnected from her religious community when she discovers that she is a lesbian. Cut off from everything, Jeanette uses her dry wit and considerable intellect to build a new life for herself.
The most popular website for book notes. SparkNotes was created by students for students, and their summaries are accessible and extremely well-written. Besides the usual plot overview, chapter summaries, and character analysis, SparkNotes differentiates itself with a section discussing themes, motifs, and symbols.
Their book summaries aren't as good as other providers, but PinkMonkey often has interesting insights that aren't mentioned elsewhere on the Internet. For example, they go over literary elements (like setting, conflict, and mood), compare and contrast, and symbolism/motifs. It's a good site if you want to find a unique fact or angle that other students don't know about.