If one or more of your current or past students created a “spoof page” purportedly made by you on any social networking website, how would others be able to verify whether or not it was truly yours? Do you have a personal website where you link to other websites you maintain and have actually made? I know most teachers don’t, but should they? It’s an interesting question to consider.
Until then follow Wesley suggestion: check back with The Quality Information Checklist.