Remember the pre-dot-com days, when new business was actually something even the hottest PR firms actively sought out? As many client-side PR pros are learning, the shoe is now on the other foot in Silicon Valley and other places where startups and VC cash is flush but prized marketing talent is scarce. Now it takes much more than waving a fistful of dollars to gain the attention of agencies. PRWeek spoke to several heavily-courted PR firms about what prospective clients can do to get that foot in ...