When buying advert, be it text link or banner ad, I find that most vendors want you to pay many months ahead, some wants you to pay as far ahead as 1 year in advance. I used to do this but stopped. What I have found out is that some of this sites are either not around, change hand or your advert is moved to a less desirable section, since you have paid in advance, you have very little leverage on the vendor. Been looking for advert and it quite interesting that a few vendors insist on one year ahead, as you can guess, I told then where to go. Would you or do you pay for adverts, 1 year in advance?