Excuse the newbie question, but I am a newbie, after all. What does a preview consist of? If you're selling more than one article, do you need a preview for each article? Can someone give me an example, please. Thanks.
Are you talking about previously-written articles? In general, I wouldn't offer any kind of preview. People can get a feel for my style and ability through the samples in my portfolio. If you're talking about an article set like PLRs or something, it would depend how you're selling them. For example, when I used to sell PLR sets, I would let them see one article from the set on my site (which counted as one of the available sale / usage sets), and they'd get no previews of the others. If you're selling single articles, you may want to include the first paragraph or two depending on length.
Well, it should be included in your overall price. For example, when I sold a set of 5 PLR articles, one was published on my own site for them to see - they weren't allowed to use it in any way without buying the full set it was included in.