A collection of common code tasks needed to build a hack for an open hack day. Contains information about how to use PHP to read web services, using YQL to remix web data, using YQL to make it simple to display data and a library to get geographical information about content and the end users. Also includes oAuth authentication examples with the Yahoo library to access the Yahoo social Firehose. See it in action at http://isithackday.com/hackday-toolbox