Shoeless Joe is the story of Ray Kinsella, a baseball-obsessed farmer who hears what he believes is the Voice of God telling him to build a baseball field in the middle of his crop of corn. Ray complies and soon the spirits of dead baseball legends begin to appear, including the titular Shoeless Joe Jackson. Kinsella is eventually guided toward helping the suffering writer J. D. Salinger to overcome his demons.
Boasting the largest collection of book summaries, BookRags is the best option for titles you can't find elsewhere. They offer all of the basics (quotes, chapter summary, characters, historical context, literary criticism) but also walk through a few major topics that recur throughout the book, which can be particularly useful for essay writing.
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.