[Haskell-cafe] partial functions / failure, Maybe and MonadError and good style

Although terse, the subject really says it all. If i've a partial function, like a parser, what is considered good style for a library. The tradeoffs that I can see are that Maybe is a binary operation, while Error can communicate more information in the type of the error case. Is there some way to defer the error handling Monad to the calling context?