if you want to autocross (either with your gokart or civic), since you're sorta local to me depending how far you are from chicago you can try these clubs

www.tsscc.org
www.scca-chicago.com
www.waiautox.com
www.scca-southbend.com
www.windycitymiataclub.com

there's also a club down in champaign that you should find through google...i don't autox with them cus it's too far for me