Starting a club ...
1) find a good helper -- very important ... a bad helper can severly injure or otherwise screw up a good dog.
2) secure a training ground for at least one evening and one weekend afternoon. Don't forget tracking areas.
3) Talk to one of the Schutzhund organizations -- USA, DVG, WDA, and establish an affiliation.
4) Get club insurance( Sportsman's does the bulk of this underwriting -- the rates are surprisingly reasonable.)
5) Buy or make the training equipment - blinds, hurdles, scaling wall.
Will has provided the link to the DVG group.
You can probably find the WDA website.
USA & DVG lean more towards the working dog side of the equation. WDA is oriented more towards the needs of the show breeders.
USA is the largest and most active group. Each USA club must have at least one trial each year. Many clubs will have two, three or more. The USA actively promotes helper training through numerous helper seminars and classification events. USA has established a Judge's training program that provides a number of home-grown judges. Many clubs will also bring in SV judges (travel expenses are shared amoung the clubs that bring them in.)
(
http://www.germanshepherddog.com/ )
You would be in their Mideastern region. Contact the regional director for help on setting up a club. The basics are a minimum number of members, holding an affiliation trial, holding at least one trial each year, and adopting an organizational structure (officers)
http://www.germanshepherddog.com/members/USA_ByLaws.pdf (pg 5)
In terms of trialing, USA is the most active.
The USA Mideastern region has over twenty trials scheduled in 2009 and will probably schedule another 10-15 as the year progresses. Nationally, USA has in excess of 120 events currently scheduled for 2009. There will probably be about another 50-60 organized as the year progresses. The number of trials is significant because it provides more opportunities to get your dog titled without turning each attempt into a trans-continental trek ($$$).
DVG has 6 trials listed nationally. WDA has about 25 trials listed nationally.
In Ohio, DVG lists two clubs - one in the Columbus area and one in the Youngstown area. WDA lists none in Ohio. USA lists eight -- two in the Columus area, one in NW Ohio, one around Cincinnati, and the remainder in NE Ohio. Access to surrounding clubs is important because they tend to provide support for each other -- helper resources, judges and moral support. Another factor is that with more surrounding clubs, you will have a better chance tend to fill the available slots in your trial. This spreads the cost of paying for the judge among more people.
Dayton is not exceptionally far from the established clubs in Cinncinnati and Columbus. You may want to spend some time visiting those clubs before starting your own. Many folks travel quite a bit to work with a club. Our club is in the Akron area -- we have members that regularly travel from Dayton, Bellaire (SE OH) and Sandusky (NW Ohio).
You may also want to check out the clubs in the Indy area. Mike Diehl has a pretty nice group over there.
Looking at some of your other posts, it seems the dog you have is at least 5 years old. Realistically, that may be too old to get her started and titled in Schutzhund. However, it CAN be done with the right dog a good trainer.
You may want to talk to a trainer at an established club and get a realistic evaluation of the dog's potential. You will learn quite a bit in the attempt and what to do and not do with your next dog.
Remember, Schutzhund is Tracking, Obedience and Protection.