Share 'Looking for riding partners'

I ride from Wrigleyville. I've done a bunch of long road bike rides from here. Also, looking to do more mountain biking (I don't have a car.) But I get lonley on the long rides. I don't know any cyclists around Chicago. last weekend I went from Wrigleyville to the Wisconsin border and back. I'm looking to do some and whole bunch of training in April.   Any groups?