Websites of 20 American colleges and universities exploited for pharmacy spam

A spam message left by a WP comment spammer led me to the exploited website of Solono Community College. That’s where I recovered a list of 20+ American colleges and universities whose websites are exploited for pharmacy spam. See it at http://machouse.mhvt.net/?p=616

I don’t know why this spam group mostly targets American colleges and universities.