My 2cents tip when registering new domain
 

Before You register new domain check domain history in:

http://www.google.com
http://www.whois.sc
http://www.archive.org/web/web.php

or You will be disapointed like me when I found out that domain which I registered and started promoting is banned by Google because previous owner was doing black hat seo experiments here :(:2 cents:

Well in that case i suggest iwebtool ban domain checker.

http://pissyourself.com/smilies/qqb013.gif
Sound advice!

It seems that this tool is using "site:domain.com" query google...this will not work if Your domain is "only" penalised...

I really recommend checking history of domain on web archive...there are screenshots of previous web which appeared on this domain before

I love the Wayback Machine. It's so cool!