So, I just hit 3 different career fairs at my uni (for a summer internship), and now I have this humongazoid stack of resumes and business cards (and random trinkets >D) that I need to follow-up on. Lots of the companies just told me "Well, send your resume to this e-mail address;" when they say that, does that imply that I have to send a cover letter as well? (i.e. if they just say "send your resume" and not "send your resume and cover letter.) If they're not expecting a whole three-paragraph cover letter then (I'm totally crossing my fingers; do NOT want to send CLs for 20 diff companies in totally diff fields looking for completely diff positions), what should I include in the e-mail body to introduce myself and such?
Sorry for being a noob, thanks.