No doubt about it, link wheels are controversial. Depending on who you ask, they may even be considered a "blackhat" SEO technique - in other words, one that may be effective at least in the short-term, but that's heavily frowned upon by Google if and when they notice it. But what exactly is a link wheel? Do they have to be as "blackhat" as some SEO experts make them out to be? And even if they [...]