I love SEO tools. I'm always building or looking for really cool tools. With the demise of Yahoo Site explorer, a number of companies are attempting to fill the void, including SEOMoz, Majestic Tools and Link Research Tools. My favorite Yahoo replacement is a tool that you've probably never heard of: ahrefs. They offer 5 .

I have an associate that runs a very large and heretofore successful content site. He's an experienced and competent entrepreneur and CEO. For several years, everything came together, according to plan, as his website and traffic grew exponentially. He was adding staff and negotiating a move to new offices. The future seemed bright, sunglasses and all, until an unexpected and unwelcome visitor stopped by to visit last April: Panda. Like many content based websites,