Erin Everhart covered this topic for Search Engine Land. For a number of the tips she gave, it seemed like she was reminding her readers not to overlook the obvious. I don’t mean that in a bad way; given half a chance, many of us will focus so closely on our own little online world that we fail to see the other worlds we inhabit. We may even blow it big time when it comes to spotting points of overlap from which we can benefit. Take Everhart’s first tip: guest blogging for links. If you own a business-focused website, you’re probably an expert at something. That means other people will be inte…