Given the wealth of information available on the internet it can often be very time consuming to go looking for that scrap of information that will be your salvation. One way around this that also neatly circumvents the need to sit and trawl through a multitude of sites online is to use an Email Search Bot like NASA's iliad. Submit the query and the response will be emailed back for you to read at your leisure. Those that have sight problems also gain the benefit of the simple text being easily read through any Text to Speech tool. Visit the website for details http://prime.jsc.nasa.gov/iliad/ or email iliad@prime.jsc.nasa.gov with a subject of 'query iliad' and '?Q: Iliad instructions' as the message text.