Backpacking in Iceland
Jonathan Ley | Offers excellent general information, route information, and photos from his north-south traverse of Iceland.
Michel Blomgren | Contains some useful information from his north-south traverse of Iceland.
Icelandic Touring Association | Responsible for managing and maintaining many of the backcountry huts and hiking trails in Iceland.
Icelandic Mountain Guides | Offer a 30-day guided north-south traverse of Iceland (they have a detailed route description on their website) plus many shorter guided hikes, including glacier walks.
SOLOICE Expeditions | This does not interest me at all, but you might want to visit this site for information about winter trekking in Iceland.
isafold.de | If you can read German you will find a lot of information about Iceland here.
Iceland Air | The only airline to fly directly to Iceland from the US (specifically NYC, Minneapolis, Boston, and Orlando).
Nordic Adventure Travel | A consortium of Icelandic travel companies, which means you can find country-wide bus schedules.
Icelandic Bus Company | You can send a package to Hveravellir through this bus operator.
TREX | Another bus company that, most importantly, has a daily bus along F26 on which you could place a package bound for Nyidalur hut.