within minutes of our visit to moten's yogurt shop, he'd put us on instagram and facebook. "it's great it promotes their biz and leads me to purchasing." but measuring just how much business online activity attracts has been, for the most part, anecdotal. but few deny that it can't hurt. "as a small business grows, they need to get in front of large numbers of people they need to attract." so as twitter prepares for it's i-p-o roadshow beginning october 28th and for trading on the new york stock exchange to begin november 15th, a big question remains--how much of it's "access to eyeballs" will translate directly into sales for advertisers. twitter's user growth has slowed and is coming mostly from countries overseas not considered big markets for advertisers. but the lure of having access to twitter's 232-million users is a powerful magnet. it may help potential investors to overlook twitter's third quarter loss of 65-million dollars-- three times what it lost a year ago. it also added 300-employees during that time but the losses are draining twitter's bank account. it hop