Let's say one had a list of 10k twitter names that one knew were interested in going to Vegas in the next 1-2 months. And one wanted to offer them a 75% coupon to the Luxor (yuck, I know). They are not my followers and I have no relationship with them, other than I know they are headed to vegas in next month or so. What's the are the various ways to get that message in front of those users? So far: I could mention them in tweets from my various twitter accounts I could follow them with an account that is like "VegasLuxorSavings" - but isn't it hard now to mass follow that many names? Can I direct message them without following them? Or what would you suggest?