Lonely Planet online Destination Guide offers travel information about virtually any country in the world. This link will bring you directly to the travel page about Guinea. Here you will find information about topics like: Health & Safety, Culture & History, People & Society, Money, Events and Transport.
Nice guide by Wikitravel about Guinea. It's an user generated travel guide supervised by administrators. On this page you will find the following travel tips about Guinea: regions, cities, entry requirements, getting out, languages, eating, drinking and sleeping, learning in Guinea, health and safety, respect and contact. Though wikitravel updates the information frequently, we suggest you always check the travel advice from your own government first, before leaving your country.
WTG provides detailed travel information and articles about Guinea. In the left menu you will find guides sorted by theme and with the menu on the right side provides the table of contents for Guinea: overview, passport and visa, money, health, accommodation, going out, getting around, climate, map and images, travel advice and more. You can also create a miniguide that you can print.
World66 is a nice user generated travel guide made by travelers. Every part of the travel guide can be edited directly by clicking the  button. The guide about Guinea contains information about the following travel topics: general information, map, history, practical info, economy, health, people, books and a photo gallery.