Specifics and payment methods are described here

The URLwire FAQ (Frequently Asked Questions) can be found here. It's located on the 
URLwire homepage below the first screen, so it's easy to miss if you don't scroll.

Receiving URLwire is free, and there are several options as described below

There a number of ways you can receive/read URLwire

Private Email
The private one-to-one email version is matched by me personally to your interests.  URLwire by email is not automated. I will only send the email version to people who ask for it. You tell me the types of sites you want to know about, and you won't hear from me unless I have one that matches what you told me.  This option is especially appealing if you only car about specific subjects.  For example, if you are a librarian at a law school, you may only care about legal sites.  If you are the family living editor at the New York Times, you may only want to hear about sites in that topic.  To subscribe this way, send email to eric@urlwire.com and let me know what your interests are.