For example, let's say you have an excellent PDF file and to get it, someone either needs to click to tweet, like on FB, or +1 and once they do, the PDF shows up for them to download...
Would this annoy you or turn you off in any way? If so, why?
I haven't tried this yet and I do like the idea for building traffic and viral, but I am wondering what the end user thinks.
I don't mind social sharing as long as the content is good, but is that how most others feel as well?