If you receive the following error message trying to authenticate your site on Yahoo!, You need to check your file permissions. Short and Sweet.
Failed to authenticate your site ownership due to the following reasons: We looked for the Meta tag on your site’s home page: http://www.my2cents.lukeup.com. We did not find the meta key 385198c5d40a0053 in the page. Error: internal server error (http 500) Try: Fetch the page from your browser. Check the content of the file using “View Source” on your browser. Check that the Meta Tag is in the source of the page. Check that the Meta Tag is AFTER the first tag. Check that the Meta Tag is BEFORE the first tag. We were unable to fetch the verification file (y_key_db97d78ea5da04f3.html) from your site. Error: internal server error (http 500) Try: Make sure the file is installed. Fetch the file from your browser. Check the content of the file using “View Source” on your browser. It should look like:
If the file looks OK, ask your website hosting service if they are blocking Yahoo! Slurp.