In 2015, Sylvester had the opportunity to serve as a member of GlobalGiving's Leadership Council.  

About the Leadership Council: The Council acts as an ad hoc advisory committee, providing regular feedback and engaging in discussions about new features on the site and ideas for future campaigns via the Leadership Council Facebook Group and email.

Members may also receive specific questions or requests from GlobalGiving staff relevant to their country or area or expertise. For example, if you are selected, you may receive infrequent requests for feedback on other organizations in your country or identifying potential guest hosts for monthly trainings. Council members may also be intermittently asked to act as a reference for other GlobalGiving partners in your country or sector who have questions or require some assistance with their GlobalGiving account.

See a PDF with more information