Max Sewell on "permalink address gibberish"

I'm trying to use permalinks. I've selected:

http://dunnwines.com/wordpress/sample-post/

which reverts (or uses) Custom Structure:

http://dunnwines.com/wordpress/%postname%/

But I'm getting extra code gibberish at the end of the address on all pages (and it changes from page to page) for example:

http://dunnwines.com/wordpress/contact-us/#.USK1J-jqK6k

Any way to get rid of the "#.USK1J-jqK6k" ?

Thanks