how to remove sharing options; e-mail editing

1. I need to remove the sharing options for facebook, etc. also the rss feed. When I try to uncheck all the options for sharing the checkmarks just come back even after I have saved.

2. When e-mails go out with poll creation, etc. they include sharing links, but I can't see where to configure the e-mails to utilize our facebook info. rather than yours.

thanks for your assistance...
Twila