Actress Reese Witherspoon has signed on to be Avon’s first-ever global ambassador. She will serve as the honorary chairman of the Avon Foundation and she will be the spokeswoman for Avon’s beauty brands and sales representatives. As part of this multi-year agreement, Ms. Witherspoon will also be involved in product development initiatives and appear globally in Avon advertising, web sites and in the company’s brochures. Financial terms of the agreement were not disclosed.      ...