Sometimes its nice to know what other domains are on the same IP as you. Well you can find that out by going to whois.sc They have an option called Reverse IP that does this. Besides the usual whois they will also give me SEO evaluation and possible problems why your site cannot be crawled. Lots of useful stuff and also a backlink once you whois your site.
Yeah cool dude, you can also use the command ip:the address on msn.com to see what sites are on the same server
Not really. I don't want to start a fight, so let's end it . Cheers . I like domaintools.com and use it all the time, but it will be more appropriate to post it HERE.