See my website (admitted self reference) openingbands.com for a slew of local and regional band listings for the Central IL and Chicago IL areas... Feel free to submit your bands to our list especially if you play shows in the chicago or champaign areas!
umm, we have an AMAZING band from my school, a group of High School seniors who make super music. It's amazing... these kids do covers of songs more musically (and stylishly) correct than the originals. They have been a band for over 5 years, and all have been playing for way longer than that time. Unfortunately, there is NO information about them online, odd because they've played local concerts and won contests and stuff.
They're called "I'm a loner, Dottie, A Rebel". I hate the name.
also, my band director's brass band (which is actually really cool) is at www.kingpinbrassband.com . It's a whole bunch of 20somethings that play brass instruments and make some hot hot music. The site is being built as we speak...
If you like Alanis Morisette, Fiona Apple, Natalie Merchant, Sarah McLachlin, Janis Joplin you will love Alyson Faith. I'm not friends or related to her in anyway, just a big fan of her music and local concerts.