Must I incorporate?

It's been suggested to me that I had better incorporate for reasons of liability protection.

If I do this, not only is it a few thousand dollars, but also a few days of research and effort - but I also will have to decide whether to do it as a C, S, or LLC. A quick google reveals that the decision won't be something which is boolean (a data type which has only two values, true or false).

I add this to my blog because I want to include all the related details which will add distractions from the real goal.