You absolutely rock! But I would make it a fee for service since people always mean well but don't tend to donate. You're providing a service that will save people boat loads of time and frustration and you'll have to pay for the site. Even if you made the cost $5 (PayPal charges you, right?) you would offset the cost of PayPal and site upkeep. Everyone who needs to know, will know you are doing the rght thing without taking advantage of people. Just a thought.