Can't really rate this except to say that it caused my site to go offline with errors. I guess I'm not allowed to post the error message here but I did see that's it's a common problem in their forum. Apparently it's incompatible with something on my site. Too bad, I would have like to use it. Linkbacks is not something that would prevent me from not using an extension, they are too easy to remove. Some of you really should take some online HTML, CSS, and PHP courses, many of them are free and you'd never have to complain about linkbacks...just remove them!