For sale is AUTO and MANUAL traffic credits. AUTO means user might be not at the computer while your page is displayed. MANUAL means user will deffinitely see your page, banner or text link advertisment. AUTO credits are $5 for 100,000 at the auto exchange in my signature. If you need sample, create an account and after autosurfing 50 pages you will receive 2000 free credits. If you want to buy, let me know your user id # and quantity. MANUAL credits are $10 for 12,000 which is 1/6 of what they are sold for at the exchange site ($20 per 4000). Credits can be converted to: 12000 credits = 12000 manual visitors or 240000 banner impressions or 480000 text link impressions to those visitors. The delivery rate of visitors is about 1500/week per account. If you are considering to buy and would like to review, create an account at the manual exchange in my signature, then pm me your user id # and I will transfer you a small sample (200 credits) for free. If you interested in buying, send me your user id # and quantity.