I'm hoping that with this post (1) you will realize that there are various IFB groups you know next to nothing about. (2) There is much about any group you cannot learn on the Internet. (3) We should not broad brush a movement as diverse as the fundamentalist movement.
GARBC
From Separation to Inclusivism
http://www.rapidnet.com/~jbeard/bdm/Psychology/garbc/inclu.htm
It sounds allot like this is a moderate Fundamentalist group that does not hold to separation like normal Fundamentalists.
If the GARBC is not composed of "normal fundamentalists," there is no such thing. They would be offended to hear that they are not "normal fundamentalists." Their roots go all the way back to the fundamentalist vs. modernist disputes of the Northern Baptist Convention, and the fellowship was founded in 1932 out of the NBC. As northern fundamentalists they have more of an emphasis on scholarship than the southern types. Another place where they differ from the BBF is that while the BBF still has their approved schools and mission board, the GARBC departed from have approved institutions some time ago. The GARBC pastors are also much less likely to be KJVO, though they take a very strong stand on verbal-plenary inspiration and the other fundamentals. The rest of us IFB missionaries fellowship well with the GARBC types.
With over 1300 churches in their fellowship, any discussion of the IFB movement that leaves this group out is ignorant.
BBF
http://en.wikipedia.org/wiki/Baptist_Bible_Fellowship_International
Sounds like another moderate group especially with associations with Liberty. At BJU they would not even play sports with Liberty and they were only a few hours away. BJU wanted nothing to do with Liberty University.
The roots of the BBF are southern going back to J. Frank Norris leaving the SBC in the 1930s, with the leaders cutting ties with Norris's WBF and starting the BBF in 1950.
They are strong separatists, even exclusivist in regards to other IFB groups at times. Here in Hokkaido the BBF missionaries and pastors all fellowship with us other types except for one Japanese pastor who fellowships with no one but BBF people. The BBF is very strong on soul-winning and missions, and this has helped their growth to be very strong since their founding. They are strongest in the West.
Currently the BBF is undergoing upheaval as many of the traditionalists are upset at the approved school (Baptist Bible College), which I have heard is allowing CCM and modern translations. The traditionalists are supporting Heartland Baptist Bible College in Oklahoma City. Unfortunately this is affecting the missionaries, who are losing support as the supporting churches take sides.
The relationship of the BBF with Falwell is complicated, and I can only briefly touch on it here. Falwell was mentored by John R. Rice (I met Falwell at the JRR funeral in 1980) and by BBF leader John Rawlings (who died at 99 in January). Their more moderate approach to ecclesiastical separation (eschewing secondary separation) explains the current stance of Liberty. (See
In Search of Unity by Ed Dobson.)
With 4500 N. American churches and 10,000 more worldwide, those who ignore this IFB group when discussing the IFB movement display their ignorance.
This website seems to outline the various Fundamental colleges.
http://www.fundamentalforums.com
Um, no, that's just a forum for grads of the various schools to fellowship.