Useful links and further reading.
The book I'd recommend as a starter for simple home subsribing is Mirandra Castro's The Complete Homoepathy Handbook.
4Homeopathy have created a free remedy finder app for mobile phones (scroll down the left of the page) which is handy for self-subscribing in simple acute cases. Their site is also packed with lots of useful information.
CORE-Hom is a data base of the clinical evidence backing up homeopathy; put together by the Homeopathic Research Institute.