Hey guys I've been approached by a clothing brand to place advertising on my fashion blog. I get about 50k unique visitors a month and they have asked me for my "ad buy" information. I'm quite new to this so what I want to know if this is what I would charge for different advertising spots on my website? Or what do they mean by ad-buy information? Also, what kind of money should I be charging for these kind of ads. The clothing brand is roughly $70-400+ per item of clothing if that makes any difference. Thanks in advance guys.