how do I sign up for PushPin?

You don't need to sign up for PushPin to use it, but it might make your life easier.

PushPin uses OpenID to handle user accounts. To sign up, just type your OpenID into the box at the top right and press "log in."

You might already have an OpenID; see the table below. If you're not already on any of the services listed, then you can find a place to get an OpenID here.

if you're registered with:	then you can log in with:
AOL/AIM	openid.aol.com/`screenname`
Blogger	`blog`.blogger.com
LiveDoor	profile.livedoor.com/`username`
LiveJournal	`username`.livejournal.com
SmugMug	`username`.smugmug.com
Technorati	technorati.com/people/technorati/`username`
Vox	`member`.vox.com
WordPress.com	`username`.wordpress.com