I'm featuring models on an online magazine that launches this week. I'm wondering what sort of credit I need to give for images that are posted on my website. Should I just ask that model who's being featured, what the restrictions are on the images she's sending me? Or do models typically have full rights to do whatever they want with their images? I just want to make sure I don't end up getting sued in the future, as I do have plans for this venture to become large scale.