Lots of changes to circle management for scalability.

1. When you are forwarding a recommendation, you can type in a username, nickname, email address, or real name into the "add user or email address" field. It will match this information with the username of the person you are looking for and add that username to the destination list for your Meme.

2. The best way to add someone to a circle is to click on that person's name somewhere in the site. This will take you to their "about me" page, at which you can add them to circles. You can search for people using the search engine on the /people page.

3. The Manage Circles page now allows you to move people between two different circles.

As always, please tell me if you have any troubles.