Approval from a non-salesforce user?

[Alexski]

We are a university that requires guidance counselor approval for high school students to take courses from us.  Students apply via a web form and their application is brought into salesforce.  Students enter the email address of their Guidance Counselor.  I would like to have their Guidance Counselor emailed automatically and their approval/denial of the course be logged in salesforce.   Can approvals be used for this or does it require another method?  Any suggestions are welcome.

[DarrellD]

Only thing I can think of are using emailservices, which is programming, or incorporating a survey tool with fields in URL. Approvals can't be used directly by non SalesForce users.