So, as a business model, I get this feeling that it won't fly. Hadoop is a great tool if you need to deal with data at the level that a top 50 site would need to. But at that point, wouldn't you be able to hire someone full-time with a six-figure salary? Consulting tends to work better for firms that can't afford to hire someone as staff - and those firms tend not to be of he size that would need such a scalable data architecture.

Heck, even sites like Flickr (39th most trafficked), Wikipedia (7th), Wordpress.com (36th), and Craigslist (47th) are still able to run off MySQL. It just seems like businesses of that size would want staff and smaller businesses wouldn't have the data to justify it.