From James Randi this morning I give you this link to the International Academy of Classical Homeopathy’s website – specifically their Basic ideas of homeopathy page. I think you’ll find it contains all the evidence for the efficacy of homeopathy in one easy to read summary.
Reproduced below, just in case.
July 09 - Edited to add
They have changed the page. Well, almost. It is the same as before but they have added the words, "You are not authorised to view this resource. You need to login." Yeah. Right.