I just went to the site that was mentioned on the Front Page of SSG and needed to chime in real quick as a non-spoiler fan.
The news article says that there are no real spoilers, and to be totally honest, I don't know for certain if it's true. I read every word of the first 4 or 5 paragraphs or so and they were relatively safe, except for a brief mention of something that Jar Jar does.
Just after that, and you'll see what I mean, the author goes into detail about individual characters. I sensed huge spoilers within those sections and scrolled right past them.
Just after those sections, the author gets back to his general thoughts about the film, which again reveal nothing about plot points.
So, as always, read at your own peril, but hopefully this guide will help you to avoid any misleading information that might lead you to learning more than you want to know.
Having said that, if you don't wish to risk going to the actual site, I'll summarize his thoughts briefly in the following post, which you can choose to read or ignore, so don't scroll down if you don't want to hear anything at all. Once again, I do not know of spoilers so I can't reveal any. All the following is is a summation of his feelings about the movie.