PRO:

www.raptureready.com
Excellent for getting anything on rapture, prophecies, end of times.

www.endtimes.org/dispens.html
Defining dispensationalism.

www.raptureme.com/featured/ttcol.html
Excellent site with lots of basics for dispensationalists - proof that Christians will be raptured before the tribulation.

www.raptureme.com/resource/scofield/scofield.html
Scofield on the 7 dispensations and the difference between the church and Israel - dispensationalist.

www.raptureready.com/rr-pre-trib-rapture.html
A defense of the pre-trib rapture against most commonly used attacks.

www.hallindseyoracle.com
Hall Lindsey preaching his view of the end of times on the web.