5. Execution

5.1 Should I have a Once, Twice, Sold auction or end it on a specific date?
5.2 Should I send updates through e-mail?
5.3 Can I post updates to the newsgroup?
5.4 What can an auctionbot do for me?
5.5 How long should you let an auction run?
5.6 What timing should be used between Going Once, Going Twice, and Sold?
5.7 Is it "fair" for someone who hasn't been bidding on an item to up the bid three hours before the item is to be marked Sold?
5.8 How do you handle irate bidders who think other bidders are bidding in bad faith?
5.9 What if someone wants to withdraw a bid?