You can contact the FLOSS 2013 team by email at floss2013 at libresoft.es or (if available) in the IRC on Freenode in the #mswl or the #libresoft channels (you can use the Freenode web interface as well).
The FLOSS 2013 team is part of the GSyC/LibreSoft research group at the Universidad Rey Juan Carlos, a public university in the South of the region of Madrid (Spain). This group has been active for over 10 years researching about FLOSS, collaborating with many FLOSS communities and offering a masters on FLOSS.
Especifically, in charge of the FLOSS 2013 survey are following persons:
- Gregorio Robles (grex_ on freenode)
- Laura Arjona Reina (larjona on freenode)
- Santiago Dueñas (sduenas on freenode)