AUSTIN, TX: Porter Novelli previewed a new platform at the "South by Southwest" Interactive Conference and Festival (SXSW). The platform will provide clients with social media analytics, brand monitoring, and access to campaign results on one interface. The agency is working with software companies Crimson Hexagon, Spredfast, and Traackr on the design. Porter Novelli has been AOR for SXSW for six years.