Letter of rec. from Community College prof.

[bdizzle1]

Hi,

I recently graduated from college, and I have one letter of rec. from my History prof.  However, I obviously need one more.  I attended community college from 2003-2005, and had a good working relationship with my history prof. there.  What exactly is the etiquette in contacting him for a letter of rec.?  I no longer live in the area; is an email acceptable?  Pretty sure he remembers me, but how should I go about contacting him?  It's a bit awkward.... hey, remember me?  From like, 3 years ago? Thanks for the suggestions.