Here's an educational rant at Search Engine Land that provides a little food for thought. Are you guilty?

To me, this line sums up the real point: "The problem with this, of course, is that any time you do anything just for SEO purposes, you'll almost always do it wrong."

SEO is powerful, but providing valuable content and resources is much more powerful. Don't let the allure of SEO suck you in to the point you suck.