Some like-minded beer bloggers who also love beer hiking:
Prime Passages: An American living in the Southwest who writes about a range of beery topics and manages to do beer hiking wherever he gets to by leaving no beery stone unturned.
Tempest in a Tankard: An American who spends part of the year teaching in Vienna, writes about a range of alcoholic beverage experiences and counts beer hiking amongst his favorites.
These are some of the sites I use to find information about beer in Franconia. Most are in German but much of the information is easy enough to figure out or you can use a page translator if you find that tiresome:
Franconian Beer Guide: One of the first sites on Franconian breweries in English.
Bierland Oberfranken: German site listing breweries in Upper Franconia.
Braufranken: Informative German site on breweries and their history all over Franconia.
Bier By: German site with listings of breweries all over Bavaria.
German Breweries: Fairly up to date listing of all breweries in Germany in English.
These are some of the mapping sites I find most useful:
Waymarked Trails: Great map for finding long distance routes which often link breweries.
Mapy CZ: Great Czech mapping site.