This is an interesting tool. I think for me individually, I would not use this ever. I think that there are a lot of professions where this could be very useful especially in sales.
However, I fail to see the benefits as a football coach. This is overkill to me. I know what sites I use frequently and which ones I do not. I do not want even more shared websites. I am not a huge fan of these to begin with. I travel with my laptop so much that simply having my laptop allows me to use the traditional "favorites" feature in Windows Explorer. If for some reason I was unable to bring my laptop I could always write out a specific url if I knew I needed it. Sorry, just not sold on the usefulness of this 2.0 application.