Irish Ferries Enthusiasts
- Pictures, notes, histories of ferry companies, and links relating to domestic and international ferries.
- http://www.irish-ferries-enthusiasts.com/

Aran Islands Fast Ferry
- Operating from Doolin, this company provides detail of services, rates and contacts.
- http://www.aranislandsfastferries.com/

Stena Line Ireland
- Detailed timetables and fare charts accompany an online booking tool, along with information on the fleet, the company, holiday packages and a brochure request facility.
- http://www.stenaline.ie/

Norse Merchant Ferries
- An established Irish Sea freight and more recently passenger roll on/ roll off ferry service between the ports of Dublin, Liverpool, Heysham and Belfast. Includes general information, schedule, pricing, partial online booking and notes on ships.
- http://www.norsemerchant.com/

Doolin Ferries and O'Brien Shipping
- Located in Doolin, Co Clare and crossing to the Aran Islands from Doolin and Galway, this firm provides a timetable, details on the major islands and a note on their B&B.
- http://homepage.eircom.net/~doolinferries

P&O Irish Sea
- This ferry company offers online quotations and bookings, details of freight and passenger services, news and special offers.
- http://www.poirishsea.com/

Irish Ferries
- Detailed information covering travel to and from the UK and France. Features include fleet information, real-time arrivals and departures, route, schedule and fare details, online booking and package holiday offerings for Ireland, the UK and France.
- http://www.irishferries.ie/

Brittany Ferries
- Routes, including Cork to Roscoff, schedules with availability checking and online booking facilities, special offers, fleet details, accommodation, media information, freight and news are provided.
- http://www.brittanyferries.ie/

Island Ferries for the Aran Islands
- Contact details, schedules, tariffs, fleet details and notes on the islands are presented.
- http://www.iol.ie/~island/