Do you (or would you) go out with someone you met online, such as from a dating site, chat room, BFP, etc.? (this can be local or long distance or both)
Yes i have. They key is both people MUST be honest. i've had LTR and made very dear friends from online. my best friend and i met in a chat room over 10 years ago, she is my soul sister and i hers. Although the LTR didn't last my friendships have. 
*Do you go out on blind dates? (set up by friends, co-workers)
Oh Hell to the NO..i detest the "i have a lesbian friend that.." well i'm sure we've all heard the rest..oh lawd just because they are lesbian don't mean we're a match.lol bless their hearts they mean well. But NO.
*Would you go out with someone who has dated someone you know?
Although i never have..i guess it would have to depend on the circumstances.
*Which do you think is better: meeting and dating people from an online source, or meeting and dating people you meet in real life?
Eh, six of one, half a dozen of the other..i think it's just the way society is leaning towards the computer and electronic ages..i'd prefer old fashioned wooing and courting myself..either way as i stated before HONESTY is a must when getting to know anyone in any kind of media/social situation. *sigh* whatever happened to the days of taking your time and getting to know one another??