As an active networker I meet a lot of business owners in my local area (Kent and S.E. London). I usually ask business owners I haven’t met before how (or if) they do any marketing on Twitter.
Most of them tell me that they understand the marketing potential of Twitter. Many of them already have a Twitter account for their business, but a lot of them also tell me that they just don’t have enough time to manage this account properly.
It’s certainly true that building up a critical mass of quality followers on Twitter takes time and effort – there are really no easy short-cuts. Business owners will need to set aside some “Twitter Time” each day.