Sailing Berths Around the World

I want to know about options for securing sailing berths: ocean crossings and round the world sailing. My project requires the presentation of a document in PDF format. This document is to provide summary information including indicative pricing and web links for events and opportunities to undertake major sailing voyages for people with limited ocean sailing experience: Round the world - for example the Clipper Round the World Race Ocean Crossing Voyages - Cruising, paying for berths with like minded novices and a small experienced crew Exploration Voyages - for example Pelagic Expeditions to the Polar Seas I am NOT looking for a list of currently available berths for people needing crew. I AM looking for significant adventure / exploration opportunity with expedition kitted out sailing vessels. I do not want to put a word limit on this, however I do not see this as a major undertaking. More a research and summarising / presenting project.