This article comes from a time when we were cautious with "free services:"<p>"Plaxo is a free service and their Web site says the company, which has raised something north of $10 million in venture capital, plans to sell premium services to business users. Before I give Plaxo my information to store on its computers, I'd like to know what the company's specific plans are to earn a profit, and how my information fits into those plans. So far, there are no answers to those questions on the company's Web site."