This document discusses the challenges of integrating public domain drug discovery data from multiple sources and the mission of the Open PHACTS Foundation to address this issue. It outlines Open PHACTS' approach of integrating biomedical data resources into a single open access point using semantic web technologies and standards. This will allow users to perform queries across multiple data sources and analyze related data in an integrated manner. The document also notes some of the technical challenges around data integration due to differences in formats, identifiers and languages between sources.