Most senior managers have to job hunt 10.1 months these days, a recent survey finds. So if you've been unemployed half a year, it can seem like an eternity when you're on pins and needles, but chin up, advises Anne Fisher in her April 13 Ask Annie column. Have you been out of work for six months or longer? What are you doing to cope? How long can someone be unemployed in this market without it being seen as a black mark against their candidacy? Can changing resume styles really help cover an employment gap?