Paperpile LLC is a small software company with the goal to build exceptional productivity software for researchers with a special focus on the Google Apps platform. Products: "Paperpile" is an industrial-strength reference management solution for the Google Apps platform. References and PDFs can be collected with a Chrome extension, are automatically synced to Google Drive and can be cited in Google Docs. Paperpile is used by an enthusiastic community of thousands of researchers world-wide as a refreshing alternative to existing desktop based reference management products. "MetaPDF" is a full-featured PDF annotation solution for Google Drive. MetaPDF is currently in private beta: www.metapdf.com