The Web Interface to Whois . The technical and contact information will appear. A response of 'no match found' means that the name is not taken at that moment. St. Thomas More had originally wanted STM.org, but that name was already taken. With domain names, the first one to request an unused domain name - gets it.
Most services offer unlimited access for a yearly fee.
One mailbox is usually included in the price. This service is not necessarily provided by the company that hosts your webpage. If you have a domain, you may opt for a 'mail domain' as well. In this way you can have dedicated mailboxes for each organization or ministry that will remain the same regardless of who is responsible for answering the mail at that address. The box can then be forwarded to the person that will answer the mail for that box, and changed as necessary as the makeup of the organization or ministry changes.