hi all....this is not my method. i got it from Peerfly Blog: "Hey everyone. I found a way for you to get $275 in adspend on Bing for $12! Just follow the steps below to grab that traffic. This is a very solid way to get a campaign optimized for close to free! This will only work with new Adcenter accounts as far as I know.1. Create your Adcenter account. 2. Go to Bing Webmaster Tools. You will see in red "click here blah blah blah $50â€³. Follow the instructions after clicking on the link for $50 voucher. 3. Fill in your info here for another $25 bucks. 4. Purchase this Kindle book (Search Engine Advertising). 5. You'll need to email [email protected] with your Amazon order # requesting your Adcenter promo code. 6. Once you have that go here and fill in your info for a $200 voucher.All of these are stackable meaning that after about 15 minutes work you will now have a $275 testing budget. The $200 voucher offer is only valid through June of 2012 for those in the USA."