Great question! Your College or University has probably given you a URL that is specific to them that you should use to access the Firsthand platform. If you do not have that, you can login at https://www.firsthand.co and use your .edu email address to log in!
The login button can be found in the upper right hand corner of the site. If you do not have an account, you can also register for one from this page suing the blue "Regsiter" button. In order to access the features available to your college / university, please use your .edu email address.