I have a hosted blog and a wordpress blog - netsolns
From http://siteexplorer.search.yahoo.com/
To authenticate your site ownership, you can either add a META tag to your home page, or upload a verification file to your site, please follow the instructions below.
To upload a verification file to your site,
an authentication key (DO NOT change the file name or content):
If you have problem with downloading the authentication key, please create a text file named as y_key_ee************cf.html,put this string bf************2e into the file.
Upload the verification file to your site.
Please upload the key file that you downloaded or created yourself at the root level of your site directory.
The expected file path is http://netsolns.wordpress.com/y_key_ee************cf.html .
When the file is uploaded, please click the button below to let us know that the authentication key is in place. We will authenticate your site within 24 hours.
To add a META tag to your home page,
Copy the META tag listed below and paste it in your site's home page in the first <HEAD> section of the page, before the first <BODY> section.
<META name="y_key" content="bf************2e" >
When the META tag is added, please click the button below to let us know that the META tag is in place. We will authenticate your site within 24 hours.