From a marketing and a public relations standpoint this tool is brilliant. Rand just put up a full in-depth review here.
In the past I have not been a fan of certain outing policies, but of late I have seen that practice has went away...and if it stays that way how could I not recommend the above tool?
Sometimes it is hard to appreciate how spoiled we are as SEOs with cheap to free keyword data, cheap to free great link data, and lots of useful tools to help us organize and make sense of it all. And even lots of charts :)
One area where some of our tools could be better is on the usability front...we tend to presume some level of knowledge and/or the willingness to work through things to figure them out, but the presentation on OSE is very easy to grasp & understand at first glance. Part of this challenge comes from limited resources...and the most limiting one being time. It is so hard to make money servicing the SEO market (because there are so many great free options). As the market continues to open up more with more tools and options, at the same time the SEO *process* keeps getting more complex, with more competitors jumping into the SEO market.
It certainly feels like it will keep getting easier to make money as a publisher rather than a person servicing the SEO market.
But not all forms of publishing will get easier & more profitable. Companies like Demand Media and Aol sharing their results publicly will saturate some segments, but there are many areas where bullshit content won't be enough to compete. And some thin operations will see margin contraction as the investment needed to stay competitive increases.
But we are quite literally drowning in opportunity. If a person can't make money as a publisher with SEO knowledge, it is simply because they are not willing to put in the effort (or they are part of an old bureaucratic publishing company which moves slowly, is debt laden, and has a high cost structure).
I have always avoided scaling as a company, but there is so much opportunity that I might have a resolution for 2010 :D