Research+Models

 [|Big 6] - So many people promote this one, and I think it might be more for elementary levels, but it's still one that encourages information inquiry and discourages plagiarism.

 [|8 W's] - I have to include this one because I'm in Annette Lamb's class and I've used it before. Much of the process is just putting labels on steps that you already take, but you can't take that for granted when helping students learn about research.

 [|Information Search Process] - Carol Kulthau pretty much wrote the book on research and "berrypicking" as a good style - but this 6 stepper puts it into practical, easy to teach terms. Also discourages plagiarism through inquiry thinking.

[|BALTIMORE] From Baltimore County Public Schools, this one is specifically aimed at High Schools, and separated by discipline, which makes it immediately applicable to different classes. Easy interface on the website, too.