Zotero is a reference management tool that helps you collect, organize, cite and share your references. You can use Zotero to create citations in Word, OpenOffice and LibreOffice, and it can easily be used with LaTeX.
Zotero is free to use for anyone. It's available both as an online version and as a desktop program. The desktop version comes with browser connectors for Chrome, Firefox and Safari that makes it very easy to import online references.
With Zotero you can quickly import references as you come across them. By clicking an icon next to the address bar in your browser, they are imported to your Zotero library. It also lets you import multiple references from search results pages in Oria or other search engines like Google Scholar and Web of Science.
When your references have been added to your library, you can sort them into different collections. You can also add notes or keywords to a reference. In addition to this, you can make groups for sharing references with others.