This is a link to the online Lonely Planet travel guide about Sudan. The travel information about Sudan on their site is organized in the same manner as the Lonely Planet books, but do not expect the same indepth information. For that you will have to buy the book. This online destination guide offers the following information about Sudan: Weather, Health & Safety, Time & Place, Crossing Borders, People & Society and Culture & History. They also offer a set travel links to continue your exploration of this country.
Very informative, no-nonsense travel guide about Sudan by Wikitravel and a good place to start exploring your travel destination. The information is divided into the following topics: regions, cities, entry requirements, getting out, languages, eating, drinking and sleeping, health and safety, respect and contact. For official travel advice, always check the travel advice from your own government.
WTG provides detailed travel information and articles about Sudan. 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 Sudan: 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.
This guide about Sudan is made by travelers for other travelers and tourists. You can edit this World66 guide by clicking on the  button. The Sudan guide covers the following travel themes: general travel information, map, history, practical info, economy, health, people, books and a photo gallery.
This is an excellent user generated guide to Khartoum with information about things to do an see (Tuti Island, National Museum, Botnaical Gardens), restaurants, travel tips and warnings, nightlife, transport and more.