A selection of major International websites dedicated to track and field are:

TRACK and FIELD NEWS
Considered as the "Bible of the Sport" the magazine version has been produced as a monthly publication since 1948.
Track and Field News

ATHLETICS WEEKLY
Starting out as a monthly magazine back in 1945, it became a weekly publication in 1950 and has survived in that format to this day.
Athletics Weekly

N.U.T.S.
The National Union of Track Statisticians is the member group based in England
NUTS