I think a good way to start is to create a cycling club and advertise/put up posters/by word of mouth at a LBS: "women's cycling club looking for new members..."

A lot of cycling clubs are organized as social club, fitness related club, touring club, MTN biking club, or have a common goal as its stated purpose.

Once you have a club started, you could probably get a deal going with the LBS for discounts... Lot of clubs have some association going with LBS. All the clubs I used to be associated in the past had a "sponsorship of sort" with LBS. We got discounts, occasional freebie help etc.

RACING BUT NOT DEADLY SERIOUS (what??):
public races are races where you don't need a USCF card. you just walk up and sign up for the race. They post times, place finishes and other stats. For this you just show up and "race". No special thing required. And many of these are held in conjunction with serious race events.

Such as:
here in So. California, season opener starts with Redland Classic with stage races for the pro teams (Colavita, T-Mobil...) Along with the pro stage race, USCF races are held and also for the public race.

Sea Otter Classic is another big one in Monterrey. They too have the pros, the USCF and the public race.

IF YOU ARE SERIOUS ABOUT RACING:
Once you establish a cycling club, some of you might want to get a license from USCF and start racing.... (at some events, you can get a day of the event USCF license just for that day) From there, I'm not sure of the procedure in getting the club registered as a racing team.

To seriously race, the organizers will require you to have USCF card. Check with USCF in how to go about this.

And as always my information can be out of date or slightly wrong so take it with a grain of salt.

comments form current USCF sanctioned riders??

Organized club rides are fun.

Shawn