ads on this site are done via google adwords. to put on websites, prices vary quite a bit. if you want your ads just on tkdspace, that would be cheaper. if you want your ads on other martial arts related sites, it would cost little more. you can pay per click or you can pay per impression. in pay per click, you pay around $1 - $5 (depending on which keywords you use and what not) everytime someone clicks your ad. for pay per impression, you pay fixed amount for certain number of impressions. for example, you can choose to have your ad appear 1000 times for $2 regardless of how many people click on it.
