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"The monad concept will be presented to an audience with the assumption of knowledge of the generics concept of either the Java or C# programming languages or some other form of parametric polymorphism. The concept will be presented in a way with the objective of supplying enough understanding to apply the practical implications and will not address the underlying mathematics or category theory."

Y otra intro a Monad y a su aplicación en scala. Particularmente simple y comprensible.

"If you are a former Java developer and have become a Scala fanboy like me, you will probably sooner or later encounter terms like monad, functor or other mysteries from the realm of category theory which make you feel like a little dummkopf (screamingly funny for a German like me, according to www.dict.cc this seems to be a proper English verb)."

A programmer building an Internet-based application interacts with, on average, no less than a dozen technologies. These applications need nearly continuous operation: 24-7 availability in order to service hundreds to thousands of concurrent requests. Developers need the tools to manage that complexity and Monadic Design Patterns for the Web serves that need.

"These are the major new features added since Slick 1.0.1: A code generator that reverse-engineers the database schema and generates all code required for working with Slick. New driver architecture to allow support for non-SQL, non-JDBC databases. Table definitions in the Lifted Embedding use a new syntax which is slightly more verbose but also more robust and logical, avoiding several pitfalls from earlier versions. Table definitions (and their * projections) are not restricted to flat tuples of columns anymore. They can use any type that would be valid as the return type of a Query. The old projection concatenation methods ~ and ~: are still supported but not imported by default. In addition to Scala tuples, Slick supports its own HList abstraction for records of arbitrary size. You can also add support for your own record types with only a few lines of code. All record types can be used everywhere (including table definitions and mapped projections) and they can be mixed and nested arbitrarily. Soft inserts are now the default, i.e. AutoInc columns are automatically skipped when inserting with +=, ++=, insert and insertAll. This means that you no longer need separate projections (without the primary key) for inserts. There are separate methods forceInsert and forceInsertAll in JdbcProfile for the old behavior. A new model for pre-compiled queries replaces the old QueryTemplate abstraction. Any query (both, actual collection-valued Query objects and scalar queries) or function from Column types to such a query can now be lifted into a Compiled wrapper. Lifted functions can be applied (without having to recompile the query), and you can use both monadic composition of Compiled values or just get the underlying query and use that for further composition. Pre-compiled queries can now be used for update and delete operations in addition to querying. threadLocalSession has been renamed to dynamicSession and the corresponding methods have distinct names (e.g. w

"A concurrent programming library combining monadic and streaming I/O in Scala."

"Scalaz is a Scala library for functional programming. It provides purely functional data structures to complement those from the Scala standard library. It defines a set of foundational type classes (e.g. Functor, Monad) and corresponding instances for a large number of data structures."

"A monadic LL(infinity) parser combinator library for javascript"