In addition to the websites given on other pages we found the following helpful:

For general information you can use both the Trekking in Nepal and the Nepal Home Page websites.
For information from the British Embassy go to their website - but be warned that the Embassy has to err on the side of caution in advice it gives. The situation on the ground is not always as threatening as it might appear on reading these webpages. At the end of the day the judgement has to be yours!!
For up-to-date news on recent and current events go to the Himalyan Times and the Nepali Times.
For an example of the Annapurna trek undertaken by others go to The Silvertops

Books and Maps - Accommodation and Food - ( Websites ) - Charities