Thanks for the comments. I have been a Stikis and Diigo user for some time and also applaud your innovations. I also use del.icio.us and more recently Bluedot. It is true that we are all trying to solve similar problems and I think it would be silly to argue about what feature is better and which is worse. Customers will make the telling choice about all that.

In the meantime you bring up a great subject. What are each of us trying to build? Is there a bigger idea here than social bookmarking or social annotation? Now anyone with a browser can contribute content or point of view to any page and can link them up into mini-webs. These, looked at as a whole, become what we call the Social Web (http://occamsmachete.com/2006/08/the_social_web.html). I don’t know about you but the idea of a user generated meta-web where users have rewired and remixed things to their own point of view is pretty exciting to me.

But I think you are dead on about the key being in the execution.

Pat