by David McKay
[Feb 2009 -This is an updated version of of the item originally published in November 2008]
Andrea and I have just completed a six month cruise through the south west Pacific Ocean in "Diomedea", our 48 foot steel Van de Stadt. We sailed from Sydney to New Zealand and then onto Tonga, Fiji, Vanuatu, and New Caledonia as part of the Island Cruising Association Pacific Circuit rally. We returned to Australia. During that time we were able to use a variety of communication mediums to keep in touch with those nearby and those far away.
Radio and Satphone
We maintained a blog, which was created using either email or internet. About 99% of the time it was done by email as internet access was very infrequent.

Email entries can be done anywhere and anytime so long as you have either HF/SSB radio with Pactor modem and computer, or, as we did, Iridium satellite phone and computer. One can upload text easily via email but pictures are much slower and more expensive on the satphone. We found the Iridium to be excellent.
We used two ISP's for email: Sailmail and UUPlus. The former was good to start with but it became increasingly difficult to maintain connections as time went on. The latter was very reliable. The Iridium phone was used extensively to obtain weather information, mostly in the form of GRIB files but also in text forecasts in various countries. Of course, regular emails were sent and received. Occasional voice calls were done as well.(One can also take the phone into the liferaft as the occasion demands.)