Publications:

Cycling in Shetland
Contact: Lerwick Tourist Information Centre   Tel: (01595) 69 34 34

Scottish Islands - Orkney & Shetland (Scottish Islands, Book 2)
Contact:  www.amazon.co.uk

Online:

Cycling in Shetland - 20 cycle routes
Cycling Scotland - The Outer Isles - Shetland, Orkney and the Outer Hebrides