Regional Jet 200 ER/LR (CRJ200)
Flight Crew Air Transport Pilot (ATP)
Deviation - Speed All Types; Inflight Event / Encounter Wake Vortex Encounter
Flight Crew Regained Aircraft Control
Environment - Non Weather Related; Procedure
B737 was given clearance for takeoff and we were instructed by tower to line up and wait on 8R.  Upon the B737 rotating; we were cleared for takeoff.  Within 100 feet after rotation; we experienced wake turbulence that caused the airplane to bank 20 degrees to the left and the shaker went off momentarily.  The Captain initiated the proper recovery and the issue was resolved quickly.  We then continued with normal climb procedures and no other issues occurred during the duration of the flight.  The Captain was using a normal pitch rate prior to the wake turbulence event and I was just about to call 'positive rate' due to a positive trend vector/rate of climb when the issue was experienced.  Undesired aircraft state due to wake turbulence.  ATC in Atlanta likes to keep traffic closely spaced during departures and arrivals.  So we need to be alert of what type of aircraft is in front of us as well as make sure we feel 100% comfortable with the spacing.  If at anytime we feel uncomfortable; we should slow it down or even tell tower we need additional time for wake turbulence avoidance.
CRJ-200 First Officer reports encountering wake turbulence just after takeoff from ATL in trail of a B737.