425 DX News .... A fantastic IOTA website
IOTA-DL .......... DK6AO's IOTA-DL-Page
IOTA-Post ........ For the Islandhopper & Islandchaser
IOTW ............... The premier information page
EI5DI IOTA contest software ............... Free IOTA contest software
DX Magazine ............... For DXing & IOTA, information & stories
Chiltern ............... A fantastic UK DX club
RSGB IOTA ............... All you need to know about IOTA
Checkpoint information..... W9DC website