I watch the one from Lawrence Kansas. The camera is mounted in this guys shed and it is pretty hi tech.
No advertisements and no gimmicks. Just lots of trains.
The BNSF and Amtrak run through Lawrence/Topeka Sub division. There is live train talk with dispatchers, crew, Hostlers etc. The video is pretty decent. I typically watch at night when Amtrak #3 roles in around
11: 42 Central Time. BNSF freight trains run both east and west. Amtrak #3 goes west to LA and Amtrak #4 runs east.
I also watch several European live cams. Like Plattsburg Rail Yard in Germany. This yard is bustling with constant activity during the week. Everything from freight to passenger come through.
Rail Serve is the best source for these cams. There might be others, but I stick with what works. They have cams from the USA, UK, Japan, Australia, Europe and others.
Anyway, it is fun to watch.
Stacy