http://tfn.net/Springs/ You want springs... You got them. This place has every spring in Florida just about. 
http://www.popupportal.com/ If you got a POP-UP camper this is the place to be!!!
http://www.gorp.com/ Lot of information.
http://www.coleman .com You gotta know who these guys are if your into camping
http://www.floridasprings.com/ Some information on springs
http://www.srh.noaa.gov/radar/ What's the weather going to be like today
http://www.reserveusa.com If your camping at a National Forest you can reserve your site here. (Juniper, Salt, Alexander)
http://www.reserveamerica.com If your camping at a State Park you can reserve your site here.
http://www.CampgroundReport.com Don't just take my word for it. Check it out before you go.
http://www.flmnh.ufl.edu/ So you wanna get technical !
http://www.swimmingholes.org/fl.html More Stuff on springs
http://www.buglovers.com/ A campers reference site.
http://www.dep.state.fl.us/parks/ This place seems to be the bible on Florida State Parks