Information literacy involves not merely specific tools, but also habits and skills. That said, I’ll remind you of a specific tool, Zotero, that can help us all maintain some good information literacy habits.
Zotero is a free download from the Center for History and New Media at George Mason University. It can help you take notes and organize individual sources into collections. Then it can also help you correctly cite your material.
Other tools can help you do these things, and I’m not endorsing a particular tool. All the same Zotero is a powerful tool worth visiting or revisiting.