If you’re blog is not showing up at all in Google or other search engines, it may not be because you’ve been a bad boy and you’re blog is banned. More likely, it is because there is a little known setting in WordPress that can hide your blog from all search engines.

To access this setting, go to Settings > Privacy.

Here’s a great link that goes over this in more detail:

http://themeaningofweb.com/beware-of-the-wordpress-noindex/