EndNote and RefWorks are powerful tools to help you manage your citations and build a bibliography.
EndNote is a client-based citation manager, which means you download the software onto your computer. It can be used offline.
To download and learn more about EndNote, go here.
Unlike EndNote, RefWorks is completely web-based. This means you can use your account anywhere you have internet access, but it is unavailable offline.
RefWorks can be reached here.
Additional information and RefWorks help can be found here.