These days, LookSmart, the money-losing San Francisco-based search-advertising company, is better known as successful landlord to startups than a successful business. No wonder that CEO David Hills has resigned, ostensibly to start his own, less troubled concern. But his timing couldn't be worse. Just last month, LookSmart promised investors Hills would be on today's earnings call. Word of his resignation came yesterday. And yet he apparently submitted his walking papers on July 26. Why did LookSmart delay such critical news for so long? And what does Hills know about today's earnings call that made him so reluctant to participate?