Let say you discover a website and you want to check who is the website owner and the company that hosted it, then you may need whoishostingthis.com and whoistheowner.net.
whoishostingthis.com
This tool let you check the company that hosted that website. You can type any website URL and it will check through the database. They even provide bookmarklet button for user. This tool is really great for users who always want to search for such information.
whoistheowner.net
This tool is similar with whois command, which will discover any domain’s owner by querying more than 350 whois servers in the world. To prevent misuse, user had to type in the security code before start searching their database.
Been using DNSStuff.com for DNS and networking tool. This is a good alternative for the whois command.
@Lloyd Lopez: Both the website provide are very suitable for people who don’t have networking knowledge, as the usage is very straight forward. Simply type in the url and you will get the details.
A good alternative to dnsstuff.com is http://www.fixyourip.com