My wife and I have begun to read Game of Thrones the first book in the series A Song of Ice and Fire. We purchased the four book bundle for our Kindles, but with the large number of characters and spiraling landscape are having a hard time keeping everyone and everything straight. From experience,1 I know that many books with this intricate of a plot have detailed appendices and maps. Having the first four books in the series as a giant blob on our Kindles might be masking a printed appendix at the back.
As such I am curious do any fan created or official wikis, encyclopedias, or reference materials exist for the series? Thus far my Google-Fu has not turned up anything of exceptional value.