How I would complete the job is to firstly, prepare my spreadsheet with the necessary columns to record, the service provider; (address and contact/website/email information) a description of the aims/services provided by each service, mode of delivery of each service, the age group targeted by each service, and a column which describes that services relevance. Then I would begin researching all youth services within Sydney, from Federal/local Government sources, charities, NFP's and Church based Organizations with youth services to the community.