In order to log into Rapportive, you must be part of a Google Apps domain which has Federated Login enabled. Federated Login can only be enabled by your domain admin, and we've provided some instructions to help them:
Please note: this does not give Rapportive any special access, or compromise the security of your account. Federated Login is enabled by default for regular Google Apps domains, but for some reason Google turns it off for Premier accounts!
If you run into any problems, please email supportive@