Not all information is good information. Remember to critically evaluate what you find:
Plagiarism is defined in Brock University's Academic Misconduct Regulations as "…presenting work done (in whole or in part) by someone else as if it were one's own."
Avoid it by citing sources for all ideas and words that are not your own. This includes:
For more info:
Zotero -- a free citation management tool that allows you to grab references, store and organize them and automatically produce bibliographies. Watch this 4-minute video to get an idea of how Zotero works: http://vimeo.com/14188877
BibMe - free online tool for creating citations and bibliographies. Set up a free account and you can save and organize citations and download bibliographies into Word.