What ethical implications would be considered?

. Your friend sends an e-mail to you and all his other friends by putting all the e-mail addresses in the "To" field. One of his friends now has all these e-mail addresses, and he sends a joke to all of you. Was this action ethical on his part? If you feel that he was right in doing so, what else should he have done before sending out the e-mail? . David Johnson, who in the publishing business, comes to know that his competitor Knowledge Bank Inc. is planning to launch a Web site with the name knowledgebank.com. David immediately registers the domain knowledgebank.com on the Internet so that he can sell it to Knowledge Bank later on. Based on your research, what kind of action can Knowledge Bank take action against David to get the ownership of the domain? What organizations need to be involved and what needs to be proven for their case to be supported? Who has the authority to actually revoke a domain