Aye, I've checked both out. From my listening it seems there are some errors on RR's ZOB page however. (Once I'm sure I'll submit changes via the standard form). I've mainly used that page for the recent FCC ATA-100 data, as the latest I could find on the web (that was easily accessible and free) was from early 2007.
I'm starting to get a feel for what frequencies by manually listening to the scanner, listening for FL and flight number from pilots, looking up that flights Lat/Long FlightAware for that specific minute, and then plotting with Google Maps. It takes some time but I've been able to generate some crude Low/High/Ultra maps for what I can hear in SW Cleveland.
A huge help is Win500's recording capability. Recording each individual transmission into WAV file with a filename that includes timestamp, frequency, and description text helps me out alot. Replaying the WAV file a couple of times to discern the Flight # from some scratchy audio has helped considerably.