Citation managers (aka bibliographic management systems, reference management systems) are a key tool for students and researchers. This software allows you to easily track and manage articles and books you read as part of your studies or academic work.
Some key features:
Check the links on the left for open source and paid citation managers.
Finding a reference manager that works well for you is the most important step. Many academics use Mendeley and RefWorks. But other citation managers can be useful depending on your specialty. BibTex and LaTeX are very useful for mathematicians and computer scientists because they are very good at displaying equations. But beginning researchers can wait before adding them to their tool kit. Currently the library recommends beginning with Mendeley as it is a reliable and easy to use reference manager, but check with your professors and academic peers for their recommendations.