RedFunnel
RedJet
Vehicle Ferry
Wightlink
Yarmouth-Lymington
Fishbourne-Portsmouth
RedFunnel web site: live vessel positions
Twittering ferries alert passengers to delays (Telegraph)
Twittering ferries - profile of inventor Dr Andy Stanford-Clark (Telegraph)
Twitter service for ferry users (BBC)
Ferries warn delays via twitter (Computing)
Hampshire ferries on Twitter (Daily Echo)
Geo-tag that Train Driver! (Media140)