There are some European website about the history and information about Formula 2, please see below:
1) Research Racing (Germany) on the history of Formula 2 Racing between 1967 to 1971. Please see: http://www.research-racing.de/formula2-1.htm
2) F2 Racing - it seems like an organizer of vintage Formula 2 racing series, but it provides brief information on Formula 2 cars produced between late 1960s to 1984. Please see: http://homepages.nildram.co.uk/~blokey/Formula2/
3) Le Mans & Formula 2 Register provides race result and development in regulations throughout its "life-time". It also provide the results for Le Mans 24 hours, Targa Florio, Formula Junior (early 1960s) and Formula 3, and etc. Please see: http://www.formula2.net/
4) Directorio de constructores de F2 (1964 - 1984) provides the constructors involving in producing Formula 2 racecars. Please see: http://fotos.iher.net/F2%201964-1984%20%20r1.4.htm

5) Old Racing Cars provides informations on both Formula 2 and Formula Atlantic:
Old Racing Cars on Formula 2 (1967 - 1984): http://www.oldracingcars.com/f2/
Old Racing Cars on Formula Atlantic (also with Formula Pacific): http://www.oldracingcars.com/projects/fp/
For any website provided, please send email to mys_autosport@yahoo.com.hk or mys_website@yahoo.com.hk .