Hot stuff ( questions asked in the course of interview)
Hibernate
http://www.hibernate.org/
Relational Persistence for Java and .NET
Hibernate is a powerful, high performance object/relational persistence and query service. Hibernate lets you develop persistent classes following object-oriented idiom - including association, inheritance, polymorphism, composition, and collections. Hibernate allows you to express queries in its own portable SQL extension (HQL), as well as in native SQL, or with an object-oriented Criteria and Example API.

Ruby on Rails (RoR)
http://www.rubyonrails.org/
Rails is a full-stack framework for developing database-backed web applications according to the Model-View-Control pattern. From the Ajax in the view, to the request and response in the controller, to the domain model wrapping the database, Rails gives you a pure-Ruby development environment. To go live, all you need to add is a database and a web server.

Agile development
http://www.agilealliance.org -> http://www.agilemanifesto.org
MSDN: Agile methods are a set of development processes intended to create software in a lighter, faster, more people-centric way. You may have heard of Extreme Programming, Scrum, Dynamic Systems Development Method (DSDM), Adaptive Software Development, Crystal, Feature Driven Development and Pragmatic Programming that have been appearing since the mid nineties, many as a consequence of the need for alternatives to more traditional heavyweight methodologies. In 2001, several of the most prominent proponents of those "lightweight methodologies" started the Agile Alliance and released the Agile Manifesto, a statement of the values shared by them, for those contemplating new agile development processes.