Thank you for all the requests for invitations to our private beta. We temporarily put a hold on sending out more invites while we have been adding new features and updating the UI.
We are integrating a new beta invitation system that will allow users to share invitations with their friends. The new beta invitation system will be up and running next week. And we will email everyone back who has requested access to the site.
The demand to the private beta has been huge, so not everyone who has requested access may get an invite on the first go around. But stay tuned as docstoc is set to launch to soon.
Thank you for all your patience and support!