In the spirit of doing one thing and doing it well - this plugin allows you to add the Google Webmaster verify meta tag to the <head></head> of your skin. Nothing more, nothing less
Meta Tag Name: This is the name of the meta tag as specified on the "Verify a Site" page in Google Webmaster. This defaults to 'verify-v1' as this is what Google always calls it but make sure any way and change it if it is different.
Meta Tag Content: The content of the meta tag as specified on the "Verify a Site" page in Google Webmaster. This will be the random letters between the quotes.
Download the Google Webmaster Plugin, upload it to your plugins folder and install it via the Global Settings tab. Read the readme file and update your settings. Post a comment here with any questions.