Should I give away a free photos after a photo shoot?

This is a part II question, since I asked, the other day, and noticed that there is two types of resolutions for the photos, one is for web 72 dpi, and the other one is for Print. It feels like if you give away the .jpg for someone to use in Facebook or their site or blog or even Webstore it doesn't seem that bad, if you tell them not to take off the watermark copyright I add with my logo, but giving away a high resolution for print then seems different to me.....?