Have you experimented with Google AdWords Automatic Matching? Google bills it as a way to bid on relevant keywords that you may have overlooked. We have a different view. It's a good supplementary tool if you've already done solid keyword-discovery research, but it's a potential hazard if you haven't.

Over the past few years, many search gurus advised their clients to avoid the Google Content Network. Heck, we even dished out that advice … but now we're officially eating our words. We've recently been able to produce a high volume of conversions at a relatively low cost using the once-derided content network – and we recommend that you give it a second look.

Need a quick win today? When it comes to getting impressive (and fast) SEO results, a little on-site work goes a long way, and even small tweaks to your Web site's content and structure can garner impressive and long-lasting returns.